One of the more irritating commercials on TV now is Geico’s “Hump Day” spot with the camel roaming through the office asking people what day it is. Load up the phones with a “Morning Show Mystery Question”. Tell listeners you have a question for a prize but won’t ask it until you put them on the air. Play part of the spot to the caller and ask them to identify who it’s for. The first who knows it’s Geico wins.