catapult

I made a catapult using a toilet roll and a broken end of a balloon. So i cut the end of a balloon and cellotaped it to the toilet roll, then i grabbed cotton wool put it in the toilet roll and pulled the balloon, it flew up to the roof. Then i shot it across the room, it went flying about 7 metres! Then i tried it with confetti and it made a home made party popper, poof confetti went everywhere! I tried it with all sorts of objects we have around the house like a plastic spoon, a rubber, lego pieces, bits of cellotape, a rolled up tissue, and a pencil, but the cotton wool flew the best.