We also have a mouse named Zippy. This makes for some entertainment.
As she grew older she still loved the mice. Zippy had passed on, and we got two more named Tweedledee and Tweedledum. Strangely, they loved her, too, after an initial period of being scared when she sat on top of their cage.
She also loved sitting in this "camoflage" chair, with or without a friend.
Unfortunately, Tiptoe only lived for 2.5 years. She was hit by a car in October 2012.