Check out my electric toothbrush travel case! Unlike most existing models it fits on the A1 mini printbed, is less clumsy and also more estetically pleasing. It is made to fit all different kinds of electric toothbrushes, has small holes for ventilation and fillets on all inner edges to prevent dirt buildup. It also has a small compartment in which you can keep a travel size toothpaste or Qtips.

The inner height is 200mm which i think fits all oral-B toothbrushes (tip removed), if you have a taller one you can stretch the model a little in bambu slicer.