I bought an excellent scuttle from artisan Robert Becker. It was 26 shipped.
It works excellent. It keeps lather hot for 20 minutes. It is perfect in the fact that i can easily make lather in it as well with a 20mm brush. A bigger brush might have problems being able to make lather in it.

He sells his scuttles under the BIN on ebay. He usually has about 3 per week he
puts up, and they sell fast.