Confetti Bomb Prank!

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Pull this one on your co-workers or fellow computer geeks! Very simple to do, but very effective.

Watch the video for the overview:


Step 1: Supplies

The supply list for this prank is short and they are easy to find:

1. 35mm canister

They will give you these for free at Walgreens or most one hour film development labs.

The white ones with the tighter lids work better than the black ones.

2. Can of compressed air

Your common air duster - found at most offices. Used for blowing the dust out of computers and keybaords.

3. Some confetti

I bought some for a dollar to make it stand out more in the video, but those holes from the hole punch work great!

Step 2: Fill the Canister

This part is simple - just turn the can of air upside down, and then spray a little of the liquid inside.

WARNING The liquid inside is extremely cold and extremely flammable. Caution is advised, especially when dealing with something that can both cause frostbite and severe burns.

Once the liquid is inside, quickly dump as much confetti inside as you can, without getting any in the way of the lid. (If the lid cannot close tightly, the pressure will not be able to build.)

Finally, close the lid tightly, set it next to your intended victim and then quickly walk away!

Step 3: Kaboom!

Now comes the kaboom.

It will take anywhere from 5 seconds to a good minute to explode, depending on several factors.

If you spray a lot of liquid inside, it will take longer to evaporate and build up pressure.

If the ambient air temperature is high, the liquid inside will likely evaporate much faster.

For a bigger boom, turn the canister upside down and use more liquid. Stand clear of it if you do. The resulting explosion is pretty violent, especially for a little canister.

Watch the video again to see what I mean. I filmed that in my garage, where the ceiling is about 15 feet high. Listen to how fast the canister bounced off the ceiling and then the floor again.



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    52 Discussions

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    bloke2022PyroMonger

    Reply 9 years ago on Introduction

    the super-cool liquid is a gas, when it is sprayed in the canister it turns back to gas, causing the pressure to build untill...BOOM

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    PyroMongerbloke2022

    Reply 9 years ago on Introduction

    I see. So it's naturally a gas at room temperature but liquid in the can until sprayed, so if it's sprayed into the canister as a liquid it will want to change back to a gas, hence building pressure and ultimately popping off the canister lid? Am I getting this right? anyone...?

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    conrad2468squawker

    Reply 9 years ago on Introduction

    well......it was a bomb....but it went awry......it didnt explode.....so technecally it was,but it didnt explode....so me and a friend picked it up and took the cap off (really really really stupid idea now that i think of it!) we had some SUPER CARBONATED WATER that stuff will BURN your mouth ha ha ha ha ha....

    That happened to me too except it was a little embarrassing when like 5 people were watching expecting a giant boom and ending up with some really corbonated water.

    Yeah except i only had a little bit of dry ice that i wasn't going to use for 1 bomb, but then overnight it all sublimated in the freezer.

    Yeah that would be kinda sad. Although i did once "try" to make a diet coke a mentos bottle rocket, but instead it just burst and like drenched a person in diet coke. We were using gravel type stuff when we really needed a cement type parking lot to do it in.

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    squawkerconrad2468

    Reply 9 years ago on Introduction

    At my school the teachers will get angry at you for using ceiling darts. However, I didn't say anything about Virus's and computer pranks.

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    conrad2468squawker

    Reply 9 years ago on Introduction

    Ha ha ha ha! Lol our teachers get mad @ ceiling darts too! I have to admit that I was kinda the teachers pet.......our "share" drive was full of .bat files cause I taught a few people how to prank!

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    squawkerconrad2468

    Reply 9 years ago on Introduction

    As if you'd teach them. Actually what I really love are "BLUE SCREEN OF DEATH!" simulators. I found the best one on this very site. :D