I dont know how much help this can be, but you could go to a different Flea Market to see if anyone is also selling cross stitch and you can get a chance to see how busy they are or arent. It will also give you a chance to get an idea of pricing. Then for around the holidays, there is a craft that seems to be growing in popularity. Dry soups, or cocoa or cookie mix in a jar with a recipie on how to cook it with what ingredients to add. You could incorporate your cross stitch designs to enhance the jar – either on top or on the sides of the jar. Just one possible suggestion. Happy stitching!