D.Currie wrote:

I got mine from tmb baking (www.tmbbaking.com).

They also have some plastic bannetons and brotformen. Another source,
if you are in a largish city is Cost + Import House. They don't sell
on-line, their web site is just to give you the feel of the stores.
But, they have lined bannetons for about $5.00 each. Made in China.
Not NSF approved. But very serviceable. Just don't machine dry the
liners after washing them.

Mike