I really liked the hanger design by inagakitakahiro, so I remixed it to four different variants that can either hold two or four belts. The small size makes it great for travel.
I imagine it can hang other things as well, cleaning lufa, necklaces, etc..
I recommend 100% infill. PLA should be strong enough for average belts.
The author remixed this model.
Remixed to hold a different number of belts and adjust size and length.