If you get a round-about idea, Ernie can also help you out in that department. Basically, if it can be printed cleanly in black and white on a printer, it can be made into a stencil. Ernie's great about recommending size and doing some touch up work on your idea to make it professional. He keeps your files on hand so that reorders are very quick.
jv, I see you're up in Amarillo. I lived there for about 3 years when attending the health sciences center with TTU. If you're ever down in the Hub, drop me a line.
--nathan