Home made catapult.

Okay, your catapult doesn't have to be as elaborate as this one but you can use everyday tools such as paperclips, rubberbands, spoons, tape, cups, and other objects. It must be able to shoot an egg ten feet without it breaking
Such as...Homemade_catapult.jpeg

A catapult could be as simple as this...external image Pencil-Crossbow.jpg

or,complex like this...
external image trebuchet.gif
Either way, a catapult is fun to build and fun to launch.