Collect a bunch of stones and use a slingshot driven by magnetic repulsion to fight against opponents. The magnetic catapult consists of three parts, all of which can be printed without any support. They include the base, the throwing arm, and the crossbar. Each part can hold up to five 8-mm × 2-mm magnets. I bought them at Princess Auto, but you can also get them elsewhere.AmazonI bought it for about 20 cents each.

The magnets in the base should be loaded to repel the magnets in the throwing arm, and the crossbar can be set to attract or repel. For me, they fit very well. I had to force them in, but the friction is strong and can hold them firmly. To test whether your tolerances are appropriate, I suggest printing the crossbar first to test the fit, and then scaling it as needed.

After installing all 15 magnets, I can easily throw the pebble 6 to 8 feet away. You can adjust the trajectory by changing the number of magnets and the position and direction of the crossbar.

There are skeleton and crossbones symbols at the bottom of the overturned target, indicating that the target has been hit

You can throw anything that can fit into the slingshot's barrel, including mini marshmallows, but I think some pebbles would be more suitable.masoncfrancisofStubborn foola slightly modified version of it