very simple design, took me like 5 min to design lol

i printed with .12mm layers, used <1g each, and took about a minute each to print

scale down slightly if you want a tighter fit

this could also be used as decoration for your phone along with a case. I think it looks nice when printed on a textured PEI bed. 

They can be taken off fairly easily, and the more times it is taken off and put back on the looser it fits. this won't affect the function though