Introduction: April Fools Mouse Prank

Picture of April Fools Mouse Prank

Ever wanted to piss off a teacher, parent, or anyone else who is computer illiterate. Well now you can!!

By the way this is not only my first instructable but my entry into the April fools Contest.

Step 1: What to Do

Picture of What to Do

Most modern day mice are use a laser to detect movement. All you have to do is take a sticky note or piece of tape, and then cover the laser. It's that simple

If the mouse is an old school ball mouse, turn it upside down, and the ball will drop to the inside of the mouse. Then just cover the hole with a piece of tape.

Make sure to right down April Fools on the tape or whatever!

Step 2: The Reaction

Picture of The Reaction

People will freak when their mouse mysteriously doesn't work! It's amazing, I did this to a bunch of my teachers last year, and they flipped out trying to find an unplugged cord or something thats wrong with the computer. Some will think that their computer is even frozen.


platniumdr (author)2011-03-31

This isn't nearly devious enough. Everyone expects tape or something similiar on the bottom. But to really drive someone insane you:
1) place a clear piece of tape over the sensor opening
2) trim it with a razor so it looks completely organic
3) poke the tape with a needle once
This causes enough laser light to reflect so that the mouse moves, but it's incredibly jerky and unusable. They'll be cussing, unplugging, replacing batteries, restarting, etc etc, and every time they look at the bottom of the mouse they can't tell it's been tampered with. I've done this numerous times with outstanding success :D. Enjoy!

Sparkyrob (author)platniumdr2011-08-25

I just tried it. Aparently that does not work om my new logitech mouse, the laser sees right through it.

acabrera7 (author)Sparkyrob2013-02-07

ur mouse is probably one of those Performance Laser ones. platiumdr was probably talking about the  ones with the light. not the ones that uses no light

VirtualBoxer (author)acabrera72013-07-03

Actually, laser mice do use visible light. You can sometimes see a tiny red light. The reason you made that mistake is the same reason that many companies call it Invisible Optic.

VirtualBoxer (author)Sparkyrob2013-07-03

Not for me, although I used magic tape instead. My LED mouse completely bypasses it, but it gives an effect for my laser mouse.

qmounts (author)platniumdr2011-05-05

this is the better way, i did this to two of my teachers on april fools day and they both turned the mouse over and noticed it :(
but also i looped a peice of tape so it was sticky all around and put it on the hearing end of his phone and when he picked up his phone with another tacher on the line he said what the f*** under his breath :DD!!!!

grundisimo (author)qmounts2011-08-05

Or, if you're super dedicated you could steal their mouse and unsolder the Data connections from the inside. Keep the power connection so the laser still turns on though.

VirtualBoxer (author)grundisimo2013-07-03

I don't know about that. Most LED mice don't turn the LED on unless they have an actual connection with the PC (except for wireless ones). You'd have to install a microcontroller set up to sync with the mouse so it lights up.

junkhacker (author)grundisimo2012-03-29

it's actually much easier then that. If you put a strip of paper in the mouse's usb plug so that it covers the middle two pins, most mice will light up but not do anything. I've done that before.

ElvenChild (author)2011-04-01

you cant do this to a laptop or an apple magic trackpad

acabrera7 (author)ElvenChild2013-02-07


adi angelo (author)2011-06-14

boring old school trick.............5 years ago......nothing new here!!!

acabrera7 (author)adi angelo2013-02-07

read the comments! there's a bit of variation to this instructable!

survivorwolf (author)2012-06-07

Another great Prank is take a wireless usb mouse and plug it into the victims computer and when ever they try to use their mouse use yours to interfere click random things open or close thing down or if you do it to a teacher that uses power point to teach advance the slide show randomly

berky93 (author)2009-03-31

won't work with a cordless mouse - usually your first response is to check that it has battery by looking at the bottom to see if the light is on. in fact. I know many people who do that with corded mice too, to check for obstructions like this...

modaawesome (author)berky932012-03-24

just un plug it

inventordude14 (author)berky932010-01-31

    try using a very tiny piece of clear tape to cover the mouse one of the nerds at my school totally freaked out and thought his computer froze it was hillarius

Madrias357 (author)berky932009-05-22

Cordless mouse: best prank is to put a piece of paper blocking a battery, making sure to leave enough to write "April Fools" on it. Corded mouse: Paper ball in the optical with a tag sticking out, again write "April Fools" on it. Old corded mouse: take the ball out, place in tagged note with April Fools and instructions to hide the ball. Hide the ball in an easy place to find it, such as an empty coffee cup or in the pen-holder.

Mr911S (author)2012-03-11

I have a wireless mouse so need to turn it over to turn on so that trick would not work on me and I doubt that you could put clear tape or any thing over the lens with out being noticed.

modaawesome (author)Mr911S2012-03-24

if it is usb unplug it and see if anyone notices

graphak (author)2011-04-05

my coworker did this to me and I looked twice at the bottom, not noticing the tape and only looking to see that the laser was on. nice one.

chamster (author)2010-10-01

I SO have to play this on my little bros! they'll freak out!

allthegoodnamesaretaken (author)2010-03-22

 this is a good one! I don't like pranks that are destructive, and the best ones are when they prank themselves. well done!

Spannerz (author)2010-03-22

 I am so going to try this XD Thanks so much!!

codebuster (author)2009-04-24

Ha This is a cool idea ! thanks man ;-D

freerunnin1 (author)2009-04-14

in IT i always poke a bit of paper in his mouse and hes always wondering why its not working... he gives me a dead arm 4 doing it :P

MegaMaker (author)2009-04-05

I think I have seen 7 different Instructables for putting a piece of tape on the mouse of a computer. Who wouldn't look at the bottom of the mouse?

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