Instructables
Picture of Super annoying prank
OK first your going to need one of those card when you open it it makes a really annoying sound and of course an incredible whinny victim. 
 
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Step 1: What to do

Picture of what to do
OK so know cut out the nouse making part and glue it into the door of your victims locker or room and wait.

Step 2: Trolling part!=)

Picture of trolling part!=)
OK so hopefully your victim has opened his door/locker and is wondering what is making the noise then come up behind him and say "hey man whats up?" and he will hopefully ask back "can't you hear it?" and you will say "no you must be hearing things".

Step 3: Time to tell him=(

Picture of time to tell him=(
OK it's probably getting boring after about 5 days so i would recommend telling him it was you or just remove it when he is not there and leave him forever wondering.
p.s try not to get killed when he finds out.
ilpug1 year ago
Nice idea, just would be better with some original pictures?
Dusk Shadows (author)  ilpug1 year ago
Yeah i know i never get around to doing it
Cyclone17642 years ago
(removed by author or community request)
Dusk Shadows (author)  Cyclone17642 years ago
i will edit that in thanks for the idea=)
Dusk Shadows (author) 2 years ago
you going to use it on icecream? lol=)
Great idea, i like it.