I designed a small bathroom shelf for soap, shampoo, sponge or a toolbox or a craft box.

The floor (2 Versions) can be inserted or glued in place. One version of the shelf is suitable for suction cups as there are spacers at the back.

The second version has flat areas that can be screwed on or you can hang it with a thread.

(I bought the suction cups from Amazon “DIYexpert® 8 x Saugnapf Ø 40 mm mit Gewinde M4x10mm” and they have an M4 thread - the small hole is 4mm - picture attached. The holder is 8mm thick. The small hole has a diameter of 4.1mm. The larger hole has a diameter of 9.6mm and is 4mm deep - so that a screw head or part of the suction cup "nut" disappears.)

Note: The suction cups don't stick to the tiles for me - too rough.

I'm still a beginner in 3D modeling and 3D printing. I printed the box in Bambu Studio with standard settings (without supports) and with Bambu Lab PLA.