Teach lessons in something, whether it's cake decorating, how to can, piano, guitar, sew, knit, crochet, any number of things. You can teach weekly lessons or have like Saturday morning seminars where several people come at once and stay for a couple of hours learning something like how to decorate a particular type cake, or how to knit some simple item, or how to build a simple bird house.....
My husband owns and operates a home based handyman business where he goes to other folks houses and does jobs from something as simple as installing a ceiling fan to as complex as rewiring a room.
I have been a reporter for 24 years and I've ALWAYS worked from a home office. I also taught piano, keyboard and even beginning guitar lessons for several years.
We sell eggs to our neighbors and relatives. I will likely start marketing and selling my rabbits' poop by the bag full this spring. Gardeners love it!
Hope this gives you some ideas!