I designed this toothbrush holder/stand when we re-modeled our bathroom. We had wooden shelving we wanted to put it on and didn't want water or toothpaste stains on the new shelves. The wide base and flat back are perfect for setting against a wall or other flat surface both to keep it out of the way and to make sure that the holder doesn't tip over from enthusiastic toothbrush placement/kids.
I designed this holder to be easily printable when put on its back and it requires no supports or special printing settings. My 3mf file does include brims as that is my preferred method to insure things stay on the bed, but they are likely not necessary. This easily prints in PLA and will print in about 2 hours with about 85g of filament.
Happy printing!