If it's the same as last year, this was my favorite "hidden surprise" at MVMCP. We went by there and stopped to dance with the characters. They were doing some hula hoop games, and then did a TP (wrap toilet paper around) somebody game. We ended up TPing my then 8 yo DS, used my mom visor for a hat, my sunglasses, gave him a bottle of coke to hold, etc...He couldn't move!! He ended up winning a certificate, and all the characters came over and posed with my "mummy". Kids LOVED this unstructured time.