2 day VIP passes are a great idea.
Using the auction room for free play is a good idea but remember that you will have to have someone at the doors checking for passes or wrist strips all day.
I like the idea of the auction but I do not think it needs its own room. Put the items in the Vendor Area (or flea market) the morning off the auction to preview the items an hour before it starts and go from there. You can post items online so people can preview if you want. OR use the space from the raffle for the auction and then afterwards convert it to the raffle. Saturday morning there was only a couple tickets in each container, all the action seemed to come as we got closer to the drawing anyways.
Do not need a band and not sure where you would put them. Freeplay area is loud enough as it is, Vendor area seems like a bad idea for doing business or asking questions.
My wife requests more women's style shirts, she gave her themed VIP male small shirt to our son and bought a generic Pintastic shirt in her size. I think the artwork on these are almost evergreen, you would be able to sell them year after year if there are any left. I know she would have bought the prior years design if it was available.
Loved the glasses and hat; my game room is full of Pintastic merchandise but I always have room for more, lol. I wouldn't mind a nice polo with the logo on it, maybe a travel mug?