The Forum Fest is free for all who care to come, right? There might be others with this same concern, coming empty handed. Not everyone is expected to bring something to either raffle, use, or put in your mouth. I don't think anyone should avoid the fest because they lack things to bring. Or if they can't think of anything to bring. If I can get there I will not have anything to bring. I will donate for raffle tickets. That is all OK right?
If I had one of those dunk tanks, I'd bring it along. You know what I mean, a seat suspended over a big tub of water. Throw a ball and hit the bullseye and the seat drops which dumps the seated one into the tub. We could probably collect a lot of donations for each ball and attempt. I know I would want to have enough balls to be sure I dunked certain people. Maybe those who claim to
love water will volunteer to be the dunkees

.
I remember years ago my school had a fair to raise money and they dunked the teachers. It was the biggest attraction at the fair.