Toilet Rim Cleaning Brush

thingiverse

As standard toilet rim cleaning brushes are too soft, I decided to create my own. It's simply a standard paint roller attached with a 6mm rod and held in place by friction. I attach green 150x100x2mm Scouring Sponge Pads using hot glue. Each pad lasts about three uses. The threads' sole purpose is to reduce friction during assembly. If it still doesn't fit, scale it up or apply some heat to the rod and push it gently in place. It's designed for one-time use, but it should be strong enough to last much longer if needed. I recommend using a paint roller that's longer than the one I used.