They have a whole bunch of different designs to choose from, including designing mirrors with your own images. They also have mousepads & coasters for sale too.
Here are some of my favourites so far:
Early Birds by Eleanor Grosch Pocket Mirror
Finch Tree Pocket Mirror by boygirlparty
Miss Cora Pocket Mirror (vintage French fashion illustrations set on top of true Art Nouveau wallpaper)
Tuff Pocket Mirror by The Little Friends of Printmaking
... I"m thinking this one is my fav.