I think a lot depends on your area, the season, and of course--the prices. I have an older friend that is originally from the San Francisco Bay area and her crocheted baby blankets, washcloths & scarves, quilted table toppers, embroidered dishtowels sell very well for a decent price but when I helped her setup for a St. Louis area fall craft show--my quilted potholders, trivets and fleece fringed scarves flew off the table but I only made about $40 more than my half of the $90 entry fee for a very long days work. I had very little invested in materials because I had used scraps from quilting and all the fleece was from a Hancock Fabrics (the only one in Missouri I really liked) that closed. I went to help my friend and I did have fun but she was very disappointed. The people next to us made & sold costume/fashion jewelry & they seemed to do pretty good.