Something bouncing around on the web challenges parents to let their kids have four Christmas gifts this year. Something they want, something they need, something to wear, and something to read. For those who are parents of Santa-believers on your show, have them get their kids to call Santa to decide one thing in each of those four categories. They call St. Nick with the parent out of the room. You then grab the audio of the call to Santa to play for your listeners, with the parent attempting to predict the item the kid will choose in each category before you air it to see how well they know their children.