Multi Ring

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/8KSi5ZkzZ94

Simple spiked rings; these are size 13-ish, used for a demo for a kid's 3d printing class, and are a bit thin to be practical. What could go wrong giving kids rings with spikes on them?!

If you want to use the ring as a defensive weapon, crank up the infill so it's essentially solid. 3D-printed objects can actually be very effective pain compliance devices; we'll be uploading a small series modeled after basic kubotans and spikes. They're likely not suitable for long-term use/deployment, but as a cheap, disposable backup, not shabby at all.

(The more we think about it the more we wonder about some modifications that could make this a lot more dangerous, in a good-bad way...)