Well, renting people via a Web-site can be done for all sorts of things. I let the market decide how my time is used best, which so far seems to be LAMP and AJAX programming, or occasionally a bit of C/C++, etc. There's no reason why someone else's "services offered" can't include coming over the client's house for some "rusty trombones".
There are other Web-sites like this out there (guru.com, eLance, rent-a-coder, freelancer.com, oDesk, etc), and you could even sell packaged services on general auction site like eBay, but rent-a-freestater would be focused on pro-liberty agorists in New Hampshire, with emphasis on alternative currencies, tax resistance, etc.