Recruit four hungry volunteers. Two people stand up in chairs while two others lie on the floor at their feet. People in the
chairs try to make a banana split in the other persons mouth by dropping ice-cream, syrup, banana, nuts, whipping cream
and finally, a cherry into the person’s mouth.  With larger crowds, you may want to have a live video feed, so everyone
can see.
Variations: Blindfold the people in the chairs. Alternate people in chairs with people on the floor. Payback time.