Edit 05.15.2018: Modified the calculation of the fins, you can now just enter how many you want and the spacing between them is calculated, so they are placed uniformly. Also added a tray for soap :-D

Added the options to configure X and Y width and the depth of the "fins" separately from the whole depth in the Open SCAD File.

Please find the original here: https://www.thingiverse.com/thing:1618015