At our quilt show they have a huge table of numbered items and a can next to it for tickets. You buy 4 for a dollar, write your name and phone number on it and put your tickets into the item's numbered can you want to try and win. (I use my return address labels. I buy lots of these and who want writer's cramp?)
That makes it more profitable for the group. Last year the girls each made a tote bag and filled it with quilting goodies and wrapped the totes with cellophane. There were other items donated by the group that were cute small kits,hand dyed fabric packages, baskets of fat quarters, books with special rulers, bundled patterns, table runners, lap quilts, ect. Believe me ... Those cans fill up to the rim for some of the items.
At the end of the show, the items are drawn one at a time, they have a container they dump the tickets into and someone else pulls the winner. They announce it and if the person isn't there, they notify them by phone and mail it to them. That way everyone has a chance to win even if they left earlier.
There is also a seperate country store with items the quilter's want to sell individually. There are some items in there that are used some new. I don't know if the guild charges them a small fee, or what.