Test Cube Catapult!
thingiverse
I'd been stockpiling numerous 10mm test cubes, so the idea popped up to create something amazing out of them! My cleverly designed catapult is more than capable of housing any object that measures no larger than 10mm in both dimensions.
Download Model from thingiverse
With this file you will be able to print Test Cube 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 Test Cube Catapult!.