I was thinking of doing this myself, but for a younger Brooklyn hipster crowd. My topics so far: Fixing a flat, Chain lube, cone and cup hub bearings, replacing/adjusting cables and pads, and wheel building. Some of these would be about an hour, some would be longer. I'm just another rider, I'm not now nor have I ever been a bike mechanic. I have some tools, but even for basic wheelbuilding tools like a truing stand I use makeshift tools. I would do this all on my front porch and beer (homebrew!) would be available. I still haven't figured out how to advertise this and get the sign up, but the local bar would probably be a place to start.

The only thing I'd expect in return is more beer, but no BMC. Maybe wine, but my taste in wine is waaaay too expensive for the people I expect to sign up. Brunello or Chateauneuf du Pape.