This an alternative to my other stand Rotating Earring or Jewelry Stand by Jeff Smith - MakerWorld. Wheras the original stand had arms coming out from the center, this stand has arms with adjustable hooks. The hooks are press fit, but removable if needed. They are pretty strong and don't bend under weight even though they are not overly beefy. In the pictures there are a couple ways to set them in the slots and there are locking plates that snap into place to hold the hooks in place.
Depending on where my wife is doing a show, this allows a flat facing stand that doesn't take up as much room as the purely round stand and also seems to display the smaller dangly stuff more clearly. There are 2 and 4 arm versions in the .3MF.
These pieces are interchangeable with the Rotating Earring or Jewelry Stand linked above so they can be mixed and matched.
Disclaimer: A number of the keychains are of my own design, however, there are a couple hanging there which are gifts for family this Christmas (notably the butterfly) and were only hung to show different keychains.
Update 2/11/2024: Updated post for a snugger fit. Only 1 post now, 175mm long, but the center hole runs all the way through it. The user can use Bambu Studio to shorten or lengthen it as desired.