A little parametric (FreeCAD) hook. Handy for camping, household, you have it.

Obviously not intended for critical uses and not mechanically tested in any way.

Overall length can be adjusted in FreeCAD by changing the value OVERALL_LENGTH in VarSet DIMENSIONS. 

The boolean value OVERALL_ETCHING determines if the length in mm will be etched into the side of the hook (true: etching of 0.2mm depth, false: no etching)

Files include: 

• sizes: 40, 50, 60, 70, 80, 90, 100, 120, 250mm with etching on the side.
• 100mm without etching. Scalable to arbitrary size in the slicer.
• .FCStd (FreeCAD) file for customization