This instructable will show you how to make a cheap and easy "slingshot" small enough to fit in your pocket but strong enough to break stuff! A word of caution before we get started, depending on how well you make this thing you could seriously hurt yourself or others, the household pets, or various nick nacks. Now that you are properly warned, let's go!
Step 1: Gather the Needed Materials:
one regular sized round ballon
one empty juice bottle
optional: corn starch or baby powder