here are just a few ideas for crafts at home you can sell.
1.) Earrings, bracelets, necklaces,ect. make your own jewelry, watch vids from you tube if you need inspiration.
2.) flip flops there are a lot of different ways to customize your flip flops.
3.) candles, yes you can make your own candles at home.
4.) hair bows lots of cute hair bows
5.) clothes if you can sew you can design your own look to things then sell at the flea market they will all be one of a kind people will pay more for that.
So these are just a few things i will update more later have fun starting one of these things. Let me know what u make. I would love to see how creative everyone is.