Interlocking Hook

This is an interlocking hook. I took a picture of a hook, pulled that picture into Inkscape, and then into Fusion 360 for scaling.

There are many items I purchase on a day to day basis that could be 3d printed. However, many commercial items are designed to be difficult to duplicate because they have arbitrary curves. I am trying to build software skills so I can convert drawings and renderings into usable objects.