A small gun that shoots not that well to be honest. But this is the easiest instructable you'll ever find. And this is my first instructable. And its not that great at all.
Step 1: Gather Materials
Step 2: Building IT!
First, drink the Capri Sun. Then, blow up the Capri Sun through the straw. Finally, put a small amount of tape over the straw, and put back in the Capri Sun.
Step 3: Firing
Simply put the Capri on the ground and jump or stompon it. And if you want to make it a little more lethal then tape a sewing needle to the end of the straw.