The IceBlock stick Catabolite - By Harrison
This is my catabolite - the good thing about it is it is very strong. i used the rubber bands for extra launch power the frame is designed to withstand fire power. The cross pattern on the front create triangles with this the strongest shape to use. in fact lots of bridges are designed with triangle shape support.
The down side to my design is it is made of iceblock sticks and a plastic spoon so you have to be a little gentle otherwise it may break.