Catapult
thingiverse
People buy penny catapult parts. They use these to build catapults that shoot pennies high into the air.
Download Model from thingiverse
With this file you will be able to print Catapult with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Catapult.