Just a simple s-hook that has a rounded profile and no sharp edges. The top and bottom are slightly flattened so that it can be printed easily. It looks especially good printed on a smooth plate. The hook can't carry a lot of weight but the larger version should carry around 10 kg when printed in basic PLA. The larger the hook, the more load it can carry.

I included the following sizes in the print profile:

• 40mm long with a 9mm opening
• 80mm long with a 18mm opening
• 120mm long with a 27mm opening

Feel free to scale as need in BambuStudio or using the included parameterized OpenSCAD file.