You could build birdhouses, dog houses, rabbit and chicken houses (small ones for 3-4 chickens) from "found" wood and materials and sell them. I also recommend rock and mineral collecting - google "rock and mineral club" plus your state's name and see what comes up. You can collect on your own, go on digs and go to shows and buy really great stuff. Then there's the whole metaphysical side to it -- either way, fascinating. Also astronomy, but you'll need a telescope.
Laura
Laura