Main Gist

Choose a random member of the audience and give them an audience upgrade. Give them premium seating, snacks, prizes, etc. to give them a true upgraded experience in your program.

Materials Needed

Pictures of Fruits and Vegetables
Couch or Nice Seating
Snacks
Prizes
Personal Butler or Chef

Other Ideas

Run a contest and the winner gets the upgrade (example: bring the most friends)
Have the winner choose a friend