Would like to create a razor blade slot in the back of my existing med

The blades fall to the bottom in between the wall studs I heard somewhere The used blades are still good for razor blade scrapers I use them to

In the old days, there was a slot in the medicine cabinet to drop the used razors behind the wall Mine still has it and I am sure there are

razor returns slot demo United States Patent Office slots for movement between said frame bar and cap adapted to clamp a safety razor blade there- between , an electric heating

razor shark slot in the back of the cabinet I've lived in multiple homes with these in the bathroom cabinet Just drops the used razors into the wall lol