watcheden.net/biz is a great source for "fantasy" watches and also good prices on others. I have bought several watches over the past several years from them.
I use this most of the time -> "Bergeon 5444-B satin finish bar Medium". It's sort of a rubberized block with grit embedded throughout the compound, works very nicely. I have the coarse as well but I use the medium most of the time.