Since there's no direct link to Camsco on the discussion page, here's their address(es):

http://www.camsco.com

E-mail:camsco@camsco.com

Wally also sets up a booth at a lot of the New England folk festivals, and will be at NEFFA in 2 weeks in Natick, Mass., April 25-27.

NEFFA's a great festival held annually at Natick High School. They have LOTS of traditional dance workshops where you can do any kind of folk dancing from New Engand contras to Bulgarian village dances (with tangoes, 2-steps and waltzes in between), concerts and workshops featuring blues, gospel, ballads, banjo picking and bagpipe styles to name a few, craft sales and a multi-ethnic food court. If you're in the Boston area, try to get out there in a couple weeks... and look up Camsco Music's booth while you're there!