The soap holder allows the soap to dry more quickly than on a horizontal soap dish. It hangs from the shower spigot. The other one I designed is secured to the wall with tape or foam.

I used super glue on the lower connections.  The glue might not be needed if the hanger was printed thicker, which can be done easily in the slicer. 

The design clearances between mating pieces was sent at 0.18, which seems to work out nicely.