This is a fish hook I modified and made to fit easily on my Ender 3. Also modified the top so it can be printed completely flat. Printing it completely flat gives it a much greater strength.
I have printed and used/lost several of them. The fishing line broke before the hook broke.
I printed at 75infill and it took about 2 hours for each hook.

Check out my etsy at https://www.etsy.com/shop/TBMAKER
to see more designs

Reason for printing-
If you have something stuck in a tree for example and want to try to hook and pull it out.