Made this organizer that holds a toothbrush, tube of toothpaste, and has a flat tray to hold whatever else you can come up with.

Included are a full sized model file and files of the model split in two halves for smaller print beds (like my Prusa Mk3 S+). You may have to rotate it in your slicer so that the bottom lays flat.

I printed mine in Black PLA and lightly sanded the sides to make it look more textured and natural (takes a bit of time but it's worth it I promise).

Enabling “fuzzy skin” in your slicer I bet will look really nice too.