Kudos on the decision to participate (doesn’t matter if it works out or not, hope it does ;)).
I don’t know what kind of fair it is going to be, but may I suggest making a postcard set available? Postcards are relatively easy to buy since a) they aren’t that expensive as an actual bigger print b) you can use them to send to people :)
@vermillionfox, you make wonderful work :) I would also suggest to not waste the time to sketch something new, but instead pick a theme or two and choose the works you already have that fit. That way you avoid pressuring yourself and just concentrate on all other decisions (frames etc) that need to be made. Good luck 🍀