Carter is thinking about starting his own Squishmallow collection, just like his siblings. He's really into surprises, so he's excited about getting the Squishmallows mystery box to see if collecting them is something he'd want to do. If he decides it's not for him, he can always pass them along to his sisters. The mystery box comes with three Squishmallows, and he's really hoping to get the dragon, bigfoot, and the axolotl.