Thanks for the offer, but I think that in order for a corn fly to work you would probably have to chum with real corn (although I may be wrong). I'd prefer to stick with "natural" imitations.
As for the technique, I have tied some "berry" flies that use yarn in various colors. I cut the yarn into ~1" pieces and unravel it, then dub it onto the hook using a dubbing loop (sort of like homemade chenille) and trim it so the fly looks like a little pom-pom. Is that similar to what you do?