Summary

I use these for hanging plants: the ring is permanently attached to the plant, and can just go up on a hook if available. To hang from a tree branch, I tie a loop of line over the branch and use the dogbone to secure the ring. It works really well, and is easy to put up / take down.

Should be a very simple print: no overhangs (nothing over 45 degrees) and lots of surface for bed adhesion. Print more solid if using a transparent PETG.

I like PETG for outdoor use.