Shaving cream coaster

Most shaving cream/gel containers that I've owned always seem to develop a few spots of rust on the bottom. If they sit directly on the shower ledge they leave rust colored spots that are really difficult to remove.

So in response I've created a small coaster for my shaving cream. It has four drainage holes and two channels on the bottom for that water to leave through. The rust stays contained to the coaster and when it gets too bad I can pitch it and print another one.