Right now what I plan on doing is finding 10-12 new/different items specifically for this event and make 1 of everything for display purposes only and take orders. Since it's 2 days and is all day, into the night music event, people won't want to carry a piece of wood around with them for hours, not to mention the risk of losing or breaking it. This way I don't have to try to guess what will be popular by making several and getting stuck holding a bunch of stuff that won't sell until the next music fest.
Iggy, good luck with your plans, but, I've tried doing just that and I had little to no success with it. What I found, is that people want to get the item when they pay for it.
Len