I'm thinking about making one about scrap metal. Scrape google for a directory of yards, pull prices from scrapmonster.com and lme.com, hire bloggers, etc etc.

I think a youtube channel could be the best promotion. I know there's some entertaining scrappers already on youtube. A bunch of videos from different scrappers on one channel could get popular. I don't know much about video but I got a cousin in Nashville that produces music videos, I'm sure I can talk him into some professional editing/production. Of course there would be a revenue share. Another way to make money off scrap, just a thought. Send me a PM here if you want to discuss it.