Alternate grid/divider insert.

     I liked the Macmade model (Joseph Joseph Style toothpaste holder), easy to print, clean look.   Just added a screen to the bottom of the grid/ divider insert, with a couple of small tabs on the side.  This keeps the tooth brush and razer  lifted a little above the base and out of any water that collects in the base. Also allows you to pick up the cover off the base, and carry the contents in the cover with it.   Everything can be separated for easy cleaning.   

This works with the shell and base on the original design here:

https://www.prusaprinters.org/prints/114852-joseph-joseph-style-toothbrush-holder