So there are a number of paid models out there for this, but I figured I could whip up a free design that will hold both your ears and backpacks or purses. It mounts to the wall with some #4 screws or 3mm if you have them. You can use it with just the ears or just the bag.
I printed with 10% infill and 4 perimeters in PLA.
The author hasn't provided the model origin yet.