FAOL Sponsor, J Stockard, has them. Check their site http://www.jsflyfishing.com/ , then look under "fly tying", then "tools" & there they are under "wing & body cutters". In addition to River Road Creations, they carry a very inexpensive imported cutter, but I have no experience with them. J Stockard's prices & service are outstanding!
Actually JS beats the price from Bob's and that is pretty good. I guess it depends on the product sometime.