3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

April Fools Toilet Prank

Step 4Even More Toilet Pranks

Even More Toilet Pranks
Do you have a great toilet prank idea?
If so, then write your idea in a comment on this Instructable.
And probably you will find your comment on this list.

f you take the lid off the tank you can take the hose and point it out the back or front of the lid. Be sure the hole is clear of obstructions and that it isn't obviously sticking out. When someone flushes the toilet, water will squirt out and not stop until the hose is returned to the tank and the tank fills up. Obviously, this is best done at a friends house or (the best) at a bar/bowling alley.

If done in a public place, some people like to give a "courtesy" flush. This will result in them getting showered with water (back of tank setup) or sprayed in the back (front of tank setup).

I've done this one for years and it works great. From Harleydreamer

Put folded ketchup packets under first seat when sum1 sits down big explosion
From cheezydog10

Heres another trick get party confetti things and take out the pull fire cracker and attach the string to the toilet seat and tape the fire cracker to the toilet put the toilet seat down when a guy goes to pull up the seat to pee BANG! From struckbyanarrow

Get gelatin and boiling water,
Mix it together real good,
Put in toilet and stir with brush!

You have to scoop out your poo!!!
From Duck-Lemon

Baking soda in the bowl, and vinegar in the tank.
When they flush, it produces CO2 and overflows. From bruno13069

You could always make it so that it is impossible to flush (maybe disconnect the flush handle from the inside). Then you could make fun of them for "breaking" your toilet.

You could also add some red food coloring to the water tank to give the flusher a surprise when he/she finishes. You could also make it brown and act disgusted when they leave (make sure to create a huge scene). These are just some ideas I thought of sitting here looking through the April Fools pranks.
From Dr. Paj

You should do this in a public bathroom, and wait in the next stall for someone to go. From Domindude3

In college I used to put a couple throw pops (like they sell for kids on 4th of July here-you just throw them on a hard surface for a bang) under the toilet seat risers, so when someone sat down you would hear an explosive sound echo from the dorm bathroom! Guaranteed every time that if they didn't need to go before-they definitely had to go after!
From inquisitive

Take all the light bulbs out of the bathroom and leave the seat up, that ones for the ladies, although i wouldn't do that to my girlfriend unless she did something really bad to me.
From _Ko0LaiD_


Or try putting Potassium Iodide in the bowl, then a bunch of 30% Hydrogen Peroxide and a cup or so of liquid dish detergent in the tank. The Potassium Iodide catalyzes the separation of the Hydrogen Peroxide (H2O2) into water, oxygen, and heat... and lots of it. The detergent captures the oxygen and steam in bubbles. This means the toilet becomes a volcano of hot foam.

WARNING: the foam is very hot, and goes everywhere. It's not like they cant run from it, but it could scald, and will take quite a while to clean up.
From Kooshi_Govno
« Previous StepDownload PDFView All StepsNext Step »
29 comments
May 3, 2008. 1:47 PMDumbryth says:
Here are a few toilet and bathroom pranks: 1. take a milky way bar, squish it up, and make sure there is a person in the next stall. slip it under the dividing wall and tell them if they could give that back to you. 2. stand up, when there is someone in the next stall, and take a Clementine, grunt a lot, the drop the Clementine in. finish with a satisfying sigh. 3.take a mirror ( and don't be a pervert), and use the mirror to look at the other person's eyes. Then say Peek a boo!! HILARIOUS!!! :)
Feb 1, 2012. 4:03 PMRush_2112 says:
#2 is hilarious!
May 8, 2008. 12:30 PMDeathByPancakes says:
lol i like number 2
May 28, 2009. 3:10 PMda_h-bomb277 says:
omfg! there all hil.arious
Jan 21, 2009. 1:38 PMmisterchrischan says:
THE ULTIMATE TOILET PRANK: i call this one the "top bunk". best to do at an enemy's house. 1) remove lid from tank. 2) defecate inside top tank. 3) replace lid. 4) dont flush now! leave that "duty" for the next person. 5) enjoy the satisfaction of knowing that the bathroom will smell worse and worse over time, and the water will always be dirty. WARNING: THE VICTIM WILL HAVE TO REPLACE THE TOILET!
Apr 1, 2011. 5:15 PMWesley666 says:
That's called a double decker. It's always fun to do this in public toilets...
Apr 20, 2009. 2:20 PMSagar Gondaliya says:
mean yet funny i like it
Sep 6, 2008. 3:29 PMvailo says:
Put yellow food coloring (or better, pee) in the tank so when he/she flushes the toilet, it looks as if more pee comes into the bowl! :D (I found this on some fourms)
Apr 1, 2011. 5:11 PMWesley666 says:
That's similar to a double decker...pooping in the tank...
Nov 13, 2009. 2:40 PMHuntman00 says:
does red stain the toilet????????? pleses answer this fast cause i want to do it at my dads house
Jul 3, 2009. 11:58 AMfoxtrot4697 says:
or red, its hilarious if you use red
Sep 10, 2011. 5:58 AMTomasauk says:
Pigs blood? From the butchers. It would smell awful also... I think.
Apr 2, 2010. 6:52 AMThe Jamalam says:
If you use a large amount of clear washing up liquid and put it into the water at the bottom, when the person flushes foam will rise up very fast and pretty much destroy the bathroom.
Aug 7, 2009. 8:35 PMmatthew178 says:
pretty good kind of bad
May 17, 2008. 3:27 PMKooshi_Govno says:
Or try putting Potassium Iodide in the bowl, then a bunch of 30% Hydrogen Peroxide and a cup or so of liquid dish detergent in the tank. The Potassium Iodide catalyzes the separation of the Hydrogen Peroxide (H2O2) into water, oxygen, and heat... and lots of it. The detergent captures the oxygen and steam in bubbles. This means the toilet becomes a volcano of hot foam. WARNING: the foam is very hot, and goes everywhere. It's not like they cant run from it, but it could scald, and will take quite a while to clean up.
Aug 4, 2009. 11:00 PMCS Productions says:
LOLOLOLOLOLOL random, but swweeeeeet
Jul 2, 2009. 3:23 AMsuperhubbardman says:
me likey >:D great idea man. btw, could i come over to yours later lol? jk ><
May 18, 2008. 9:06 PMscotchbrand says:
best thing to do is heat up some clear jello and put into the bowl... about 2 ish cups of it... once done put a layer of water to give it the real look then if they pee or poop and try to flush they can't... so they have to get it out with there hands
Jul 15, 2009. 4:51 PMpeace-to-earth says:
THAT IS DISGUSTING...AND AN AWESOME IDEA. LOL
Jun 13, 2008. 1:48 PMbigfootduck says:
eww
May 28, 2009. 3:09 PMda_h-bomb277 says:
hilarious
Apr 16, 2008. 4:29 PMhunt0h says:
(removed by author or community request)
Jul 29, 2008. 8:48 PMBartboy says:
is jizz what I think it is?
Aug 6, 2008. 6:53 PMcarrierpilot1357 says:
uuummmmmm....... yes i think it is. *shudders at the thought of it*
Aug 8, 2008. 12:11 PMThe Jamalam says:
do you not like it?
Apr 20, 2009. 2:21 PMSagar Gondaliya says:
not cool dude not cool
Apr 20, 2009. 6:25 PMcarrierpilot1357 says:
uuuummm... right. I think i'll go now
May 28, 2009. 3:07 PMda_h-bomb277 says:
jizz is (please dont remove this comment because i am not trying to be innapropriate, just to explain to the not knowing) ejaculatory items. dont google it, you wont come up with nce sites
Mar 22, 2009. 4:20 PMconsumit says:
another one: 1.defecate normally 2.unroll a couple of meters of toilet paper and don't cut 3.clean yourself with the unrolled paper 4.roll back the toilet paper carefully.
Mar 15, 2009. 5:28 PMcoolknexcreations says:
Here is one. 1. fold two ketchup packs and place under the bumps on the toilet lid. 2. watch when somebody sits down and has ketchup sprayed all over the. 3. run
Nov 19, 2008. 2:55 PMchanguito07 says:
lol oh my god
Aug 8, 2008. 12:16 PMThe Jamalam says:
You could connect the tubes from the back of the loo and rig it so there is piping running up the back, and then curve it to the front. When you pee, it shoots back at you
Jul 5, 2008. 2:43 AMfiremt says:
the best one I found is most ppl have plungers in the bathroom add a little vasaline to the rim of the plunger place the plunger over the drain hole and pump it a few times then flush creates a wonderful vacuum and it a real pain to get out you have to stick something in and break the seal.
Jun 17, 2008. 12:37 PMstimky666 says:
This would be better to do on the ceramic/plastic part, that way if it's a guy that lifts the seat, he'll still make a mess everywhere.
Jun 17, 2008. 1:13 AMRishnai says:
Not really something to do to the toilet itself, but hilarious to do: Wait in a stall, and when someone sits down in another stall, say hello, then launch into trying to convert them to a religion--real or one you just invented. Or ask if they own a microwave, then start explaining why anything that gets that hot without fire is from the devil... at least until they hurry up and leave.
Jun 7, 2008. 4:19 PMEsmagamus says:
Well, you can always disconnect the pipe in the back of the toilet and wait to see 10 liters of water flowing out of the stall as someone runs out of there.
Apr 8, 2008. 2:25 PMlebelt says:
If you don't like someone just put plaster of paris or ready mix cement in the tank. it will never flush again.
Apr 5, 2008. 12:08 PMHarleydreamer says:
If you take the lid off the tank you can take the hose and point it out the back or front of the lid. Be sure the hole is clear of obstructions and that it isn't obviously sticking out. When someone flushes the toilet, water will squirt out and not stop until the hose is returned to the tank and the tank fills up. Obviously, this is best done at a friends house or (the best) at a bar/bowling alley. If done in a public place, some people like to give a "courtesy" flush. This will result in them getting showered with water (back of tank setup) or sprayed in the back (front of tank setup). I've done this one for years and it works great.
Apr 2, 2008. 12:10 PMthe_burrito_master says:
yeah "snap pops" under the seat yeah that would be sweat!
Apr 2, 2008. 2:36 PMmadhops0620 says:
sweat or sweet? lol

Pro

Get More Out of Instructables

Already have an Account?

close

All Steps Viewing
View all steps of an Instructable on the same page when you're a Pro Member.

Upgrade to Pro today!
31
Followers
19
Author:The magical duct tape kid
I think it's fun to shoot guns & build things. Also, I love to play football, baseball, and basketball. I play the piano and I like to build electronics.