Just a simple clothes hook that I've made. I've used 3x20mm wood screws for it.
I'm using this design for almost a year now and didn't have any problems with strength. Printed with white PETG and grey PLA, both materials give similar results, PETG is flexing a little bit more. Printed with 4 walls and 20% infill.
The author marked this model as their own original creation.