This Summer, One of These Will Cost $6.60? Impossible Trivia

Play Lite Rock Impossible Trivia this week for a chance to win a $50 gift card to 1-800 Flowers.com to buy mom some flowers and qualify for the grand prize Mother's Day buffet for four at the Flanders Hotel in Ocean City!

This morning's question:  The cost of one of these this summer is expected to average about $6.60.  What is it?
The answer:  When I gave the hint that these are popular during the great American past-time, Janet from Atlantic City knew the answer was ......a beer at a major league ball park!