Sounds cool! My Mom does a lot of stuff with the various fairs as she manufacturers and sells crafts, I'll ask if she has any suggestions too if you'd like.
I usually tag along, and the CLB sale I'm pretty familiar with. Typically its church-going folks, usually older, selling merch in a flea market-esque fashion. Not sure it'd be the best outlet, but I guess with proper promotion it could work. Great location otherwise, lots of table space for cheap and outlets galore on the walls.
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Sent from my Android phone with K-9 Mail. Please excuse my brevity.