Print two or more and join them together with connectors and hang 'em over your glass block wall in the shower. Hooks on the inside and the outside.

…and why not … print in different color for each family member 

Join together as many as you like. Turn the last one and use the short connector.

Width of the hooks is 15mm

Today I made a shelf to  hang on the hooks

Please give me input…

I also printed with “Input Shape” on MK4 and it is at a tremendous speed

The tray tilts outward on load, I'm about to find a solution for this!!

The solution was to make a brace (one left and one right) that supports the tray!

I've added files for this 

First, place the lower part in the outermost groove. Then, position the upper part below the protrusion on the hanger and lift it upward so that it goes above the protrusion. See photo.