Last year I participated in several craft shows with my daughter in MO; she makes and sells pre made mixes for everything from bean soup mix, to cookie/cake/bread mixes, flavored coffees, etc. and she does well.
I on the other hand took a great selection of aprons, some were reversible, all were adjustable so one size fits all, I spent a lot of time carefully crafting them to ensure they didn't look too "homemade", but more "handmade". Just about couldn't give them away ! The prices were fair and comparable to the other items selling. Too, we participated in several so had different geographical areas and different settings, didn't make a difference in my aprons.
SO, since I got into quilting earlier this year I've taken some of the aprons, cut them up and have been making quilts !
I think I'm done with participating in a show, but I still love to go and see what is being offered.