I shopped everywhere for a hair catcher that fit over our bath tub plug when I washed the dog but none were big enough, or they laid flat. I drew this to clip onto the bath tub plug when it was in the up position. A little tug pulls it off. My plug measures 47.35mm diameter and the top surface of the plug is 9.7mm from the chrome base.
It prints with a fair amount of support but it's all on the underside so it doesn't matter. Pulled off rather easily. I wish I had made the grab button on top a little larger but it will do for now. If anyone uses this design and I get some feedback, I'll make the button on top a little bigger.