Me jett jack did a science fair we bassed it on slingshots. Which slingshot will fire the farthest. We yos olives and metal balls. The home made slingshot turned out the best. But when we fired the amo we couldn't seem to find it so we tried dying it red. But we still couldn't find it. The slingshots were called bone breaker, woody, killer and the flash.one of the slingshots broke so we ended up with four slingshots. In the regional science fair we came bronze.
