Bobo

Bobo is Mr. Burns's beloved teddy bear.

History
He was once in the possession of a young Mr. Burns until Burns dropped him. After many years of decay, he then drifted in a river until he was found by Charles Lindbergh and boarded the Spirit of St. Louis. When Charles threw Bobo out his plane, Adolf Hitler caught him. When Hitler blamed him for the loss of World War II, Bobo was again tossed aside. He then ended up on a submarine in the Antarctic area. A group of explorers mine the ice and put a frozen Bobo and the ice inside the bag to be sold. After ending up in the Kwik-E-Mart, he is found by Bart. After Bart calls Bobo gross and diseased, he gives it to Maggie. Burns then sparks a city-wide search to find him offering a large reward. Homer then recognizes Bobo as the bear Burns wants and gives it to Burns. Then Homer takes Bobo back after Burns refuses to give him a reward. Burns offers Homer a lot of money in return for the bear but Homer declines as Maggie loves it too much. Burns then takes away all the towns T.V via taking over the shows on all cable networks and diverts all Duff Beer trucks out of Springfield in an attempt to get Bobo back. Then an angry mob tries to give the bear back to Burns but give it back to Maggie. Maggie eventually gives it to Burns. Bobo is still seen with Mr. Burns and was apparently fixed up, and Mr. Smithers supplied him to Mr. Burns after the latter ended up injured from a fight between Homer and Smithers. Mr. Burns has had him since infancy.

In 1,000,000 AD, some apes with their Homer-look-a-like slaves discover Bobo, and Mr. Burns (now a cyborg) and Smithers (now a robot dog) grabbed him. He says "Bobo, I know I say this every century, but I'll never leave you behind again".

Behind the Laughter
Bobo made a cameo in the  spoof couch gag in the season 23 episode "Exit Through the Kwik-E-Mart".

Two Bobo accessories appeared in the World of Springfield toyline, one based on how he appeared at the end of Rosebud and the other how he appeared in Homer the Smithers.

The LEGO minifigure of Maggie included a Bobo accessory.