View the updated model here: https://www.thingiverse.com/thing:3898636

I created this hanging soap holder for the shower because I wanted to replace the metal soap holders that kept rusting and breaking. Suction cups on the old ones kept failing also. Enjoy!

I modeled the parts in Autodesk's 123D Design program (Free) and exported out an STL file for printing. I designed the assembly to be a friction fit assembly without the need for glue.