Simple earring display

I developed this model to display earrings for photos and a single pair at a craft fair.  I do a fair bit of polymer clay work, so wanted to be able to have something simple to take pictures.

I've created an insert and a slot on the base so the round piece sits in and doesn't move.  There is a small amount of movement front to back, but I did my best.  If you print with 100% infill it's going to be a very very tight fit.  This is optimized for a 15% both pieces.

I'll be working on some other functional models, but this is my first, please be kind.