Modeled on the fly with no particular proportions. Intended as an accessory my cassette tape dispenser: https://www.printables.com/model/512135
Print straight up on the eraser end. I used 0.24mm layers, 3 perimeters and no infill.
I added paint for some color, but I can probably cut the model into separate pieces if it's helpful for an MMU.
The author marked this model as their own original creation.