Electric toothbrush travel cover

This is a cover for your electric toothbrush made to prevent it from accidentally turning on and draining during travel.
The ring on mine fit snugly and haven't fallen off as of yet.

It's modelled after a BRAUN toothbrush,
so please feel free to alter the dimensions to fit your toothbrush of choice.
(this can be done easily in tinkercad)

It has flown from Sweden to Afghanistan and back six times now and haven't turned on once, even when put through airport baggage handling. c;