Used to be ice cream. Mom made the mistake of offering up DQ for a double to DD when she was 11 and she cashed in on next at bat with a triple and started asking if she could get a larger ice cream treat for a bigger hit. Right now she's a senior in the last 8 weeks of her softball career and she wants to go out with a bang in the worst way.
DQ! I made that mistake for catching a pop up as a catcher when my DD starting catching. 3 years later, she still gets the DQ smirk on her face when she catches one. I'd discontinue the practice, but hey its an excuse to go to DQ.