I made this organizer to be modular so you can place as many arms as you need around your tree trunk and continue adding as your jewelry collection grows. The arms slot into the trunk and are plenty strong to hold a set of rings, charms, or bracelets as you can see in the photos.
I printed mine in PLA and it works great.
There's a hole in the base however there's no need to screw the trunk to the base. An earlier iteration of this stand sat on a set of bearings and rotated, however the rotation wasn't smooth so I didn't like it and I'm not sharing that part.