This is a ballista that shoots US pennies. Easy to modify for other currencies.
This nefarious device can easily launch a U.S. penny across a room wh...en printed at 1:1 scale.
It's the first upgrade many Seej players seek when they need a little more oomph than the Zheng3 Penny Catapult can provide.
Seej is an open-source tabletop wargame based around 3D printing.