only UW spot i can remember was during the Olympics, NBC used "Rez" during one of their athlete profiles. It was either a pole vaulter or a skiier, i think...something high-flying!
Janie, that "I'm a princess and this is my horse" spot is GREAT! In my mind, i imagined "Peggy Sussed" taking place in NYC or somewhere urban, and Mickey walking on the face of the water and making the dirt clean is a reflection of a float in a parade. But your spot makes much more sense!
Not by Disney, but in the 1995 version of "A Little Princess", the protagonist declares, "I AM a princess. All girls are".
That's nothing about UW but reminds me of the last RiverRun title. Plus, its a line of dialog i like to repeat