selling/trading excess produce (it's crazy what you can do on a 1/4 acre, you don't need a lot of land-- lots of YouTube inspiration out there)
small-scale [legal] widget manufacturing with home-made CNC machines (printers have gotten stupid-cheap in recent years, and spindle CNCs are very attainable, especially if you're willing to DIY)
I'm listening.
For me personally:
Those are great suggestions! Thanks!