Hat Hook
I have a wall in my office full of hooks I use to hang my many ballcaps on, and unfortunately I lost the file I used to print said hooks... so I went ahead and made my own! This one is measured to fit those plastic snapbacks on the back of a ballcap so they should sit perfectly :D Printing one out now to test
This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/bMxJwrtNLyN