Pie-the-Professor!
The booth was set up. A massive table of whipped cream pies was set up, along with a big cardboard stand fashioned to look like stocks. Teacher's head went in the big hole, hands went in the little holes, and they were subjected to any student wanting to throw a pie at them. The only catch was that the teacher had to volunteer ... or be forcibly dragged.
"SALLY!" Hank was grinning from ear to ear, holding one of the pies in a big blue hand. "Where's Sally." Because he was sure there were lots of students who wanted to pie Sally. Sally, Arla, John ... they were a trio of deathly dangerous teachers.