Quick disclaimer: I do not own a 3D printer yet (it is in delivery though) and these were my first baby steps in Fusion 360. Let's call this a prototype!

I heard you love octopuses, so as a first learning project for the contest I wanted to create a mighty kraken with flailing arms you could hang your brush in. Well, this seemed just a little too hard to achieve for a beginner, so I decided to only imply the octopus for now.

You have the head of this friendly beastie which also serves as a cup for rinsing or storing toothpaste. The cup can be printed seperately if you like to have that in another color.

The forward-facing arms hold up to four toothbrushes, the handles are supposed to go into the "suckers", which are perforated so no water will be collected inside. Therefore the toothbrush holder should get some rubber feet glued to the bottom to actually allow water flow. As seen in the render I imagine you could change the filament color during the print to have a more interesting look.

So that's the idea. I hope I can actually try that anytime soon!