This is a configurable coat hook. You can stick the 48mm version onto the side of an Ikea Kallax using Tesa Powerstrips and create a coat hanger for your kids.
Hint: To get all versions as STL, use “Download STL” above.
If you could take a picture of an actual print, please "comment" and attach the picture. - I am curious to see your uses in the wild!
You can configure (Either by using OpenSCAD and the customizing instructions here or by the Thingiverse Customizer):
The printing orientation
You can print it without support.