This is a hook that you clip on to your mantlepiece to allow you to hang up a stocking at Christmas.
It's sized to fit a 58mm shelf, but it's possible to reduce this either by adding a spacer or adjusting the FreeCAD file.
There are three parts, which need to be glued together, although you might not even need to. All three parts willl fit on a Prusa Mk42 bed.
After printing, insert the hook into the 'mouth and glue the two halves together.
Careful when releasing from the bed, the antlers are fragile.
Designed on FreeCAD 0.16.
I sketched round a piece of clip art, did a bit of manipulation to allow the cutout, then split it in two and separated the antlers.