This will drain any water on the toothbrush onto the ground in front. Perfect for a shower or similar.
Needs to be on a flat surface.
In an ideal world you'd smooth with acetone, but using sandpaper worked ok. Water drains well, but seems to collect right at the base of the ramp due to water tension.
The ramp at the front can't overhang (air) too much as it stops the toothbrush falling forward. Just a few mm