I have a small (really small) side business with arcade games, juke boxes and pool tables in a couple bars. It's tough to get into and requires more capital than it's worth to most.
Otherwise..I've been working on local guys cars for small money. There's a lot of new local guys hitting the GP scene and they all want rockers or top swaps etc. I'm not making much, but helping out w/o overcharging feels right.
Installed 1.9's and springs etc including changing the valve seals for $150
Top swap with motor pulling for $250
Feels like I'm giving it away, yet in these tough times..I'm helping out and making a little extra on the side.