I'm not sure how much Karla is charging for hers.
I really don't like the ones I did...ok, there's maybe 3 that I REALLY, REALLY like and those are going for either $15 or $20. It's just left over fabric that I had laying around. The ones that I am calling UGLY are going for $10, just to get rid of them. Even hubby says they aren't that pretty.
How long is yours? Mine are only about 3-4 ft long.
But $20 doesn't seem like a bad price.
Good luck on your fair!