This is some clips I made for beehive robbing screens. Basically, screw it on the side of the robbing screen to keep it from falling, and to keep it from where you need a rope or something to hold it on.

Just print 2 out of PETG per screen.

It works by the end is a fraction inwards. I tried to use friction and the spring of the material for this one.

NOTE: The only difference between the 2 is 1 has stars to help transfer the energy, and the other uses normal holes. I attached the fusion 360 file if you want to make your own holes.