you can buy one of the big air cannons or you can build this.
*sorry I needed to use paint. camera was being dumb.
Step 1: Materials
this is basically all you need.
A toilet paper tube
Step 2: Cutting the Balloon
cut where the dotted lines are.
save the top and middle section.
Step 3: Making.
stretch the top of the balloon over the tube and fasten with the rubber band/s
Step 4: Making.
now take the bottom half and repeat step 3
Step 5: DONE!
- I once again apologize for the pic problem. I will update the 'ible when the camera starts working again.
once you use it enough times the balloon will wrap on itself, thus creating a good handle.