Single belt holder

Not exactly your ordinary average belt holder... Well, maybe so?
The C ring which hangs onto the closet's pole has a slightly smaller opening, allowing for a better grip, which is helpful when repeatedly pulling off your belt.

Print in ABS so there's a bit of flexibility (in order to bend the ring to fit).
PLA could work too, but haven't tried it.
I used a .3 layer height with 100% infill. Takes about 20 mins or so.