Sazou

 were game pieces in a game similar to chess. They might be pocket-sized or life-sized for an emperor's set. In Draconian Heaven, giant paper Sazou were folded to keep the Deathless Emperors amused during the afterlife. (AUDIO: Paper Cuts)

The Eighth Doctor once folded napkins up to resemble sazou pieces, in preparation for christmas with Susan and Alex Campbell. Lucie Miller remarked that they looked like squirrels. (AUDIO: Relative Dimensions)