Eeyore

Eeyore is a pessimistic and gloomy old stuffed donkey belonging to Christopher Robin. He first appeared in Disney's 1966 theatrical short Winnie the Pooh and the Honey Tree.
==Background==
Eeyore is stuffed with sawdust and lives alone, underneath a small, teepee-style house made of sticks. A running gag is that Eeyore's home is almost always knocked over, forcing the gloomy donkey to rebuild it from scratch, usually at a different location. He has his own area in the Hundred Acre Woods known for its dismal atmosphere: "Eeyore's Gloomy Place", where he is typically seen sulking under a rain cloud or eating thistles.
Apart from his cynical personality, Eeyore's tail is perhaps his most defining trait. Despite being pinned down with a nail, Eeyore's tail frequently detaches from his bottom and winds up getting lost for a period of time. Christopher Robin is typically called upon to reattach it.