Get a piece of Plexiglas, about 2 1/2′ x 4′. It needs to be pretty thick (3/8″ at least) so that there’s no danger of it breaking. Then stick Ritz crackers on it in vertical lines with peanut butter. Or Oreos if you have peanut allergies Have two kids hold the glass up so that the peanut butter side faces the crowd and have two or three kids stand behind it and try to eat the lines of crackers off in the fastest time.Have students stand behind plexiglas while crowd can see row of peanut butter It’s pretty funny to see their mouths, teeth, etc. from the other side of the glass as they attempt to eat the crackers (no hands, of course).