I bought one of these. Very similar design. But no problems if it happens to slip and fall. No breakage.
For about 10 years I was using the good old green rubber Marvy mug, but just switched to the aluminum mug that I got from the Box. The Marvy is now the dog food scoop. This caught my eye...when darkened it would nicely match my new brush. More than I want to spend though and it's not a need.
Well, this is all very interesting, but I need a scuttle and hot water about as much as I need cream and sugar in my coffee. It is your shave. Enjoy it your way...