The fourth season of episode 10. According to the information about Xiaoma Baoli cartoon, Yunbao eats sandwiches in the fourth season of episode 10. In order to hold Yunbao's birthday party and the anniversary of moving to Xiaoma Valley, Xiaoma Valley made a cheese sandwich for Yunbao. Ponyville: Friendship is magic (a cartoon series that was broadcast by Hasbro, an American toy manufacturer, on the American Discovery Home TV channel on October 20 10/0 10). The story tells that TwilightSparkle (Twilight Sparkle/Twilight Sparkle) gave it to PrincessCelestia (Princess Universe/Princess Selastia).