My first Instructable. This is a mini catapult, about 3X3 inches, and fires well for its size. I expect mods to come out eventually.
Step 1: Pieces Needed
Easy to follow from the picture.
Step 2: Base
This is the base. Again, easy pictures.
Step 3: The Catapult Arm Part Thingy
Read the title.
Step 4: Rubber Bands
Sorry, I forgot to add rubber bands in the parts list. You should only need one unless you're making it hella strong.
For picture 2: It wraps down, then to the back. That might be hard to tell just from the picture.
Step 5: Firing.
This is how you load ammo. There are definitely other ways, though.
Step 6: Congrats.
This is the step that says you're done. The result should look like this.
Step 7: Added Power
I just recently found out that you can get more power by doing this: