Teddy bear (Fallout 3)

The  is a child's toy used for playing and by adults for collecting and decorating their homes. Teddy bears are made of a soft light colored fabric, filling, and lots of love. Teddy bears are used in the Capital Wasteland and Vault-Tec Vaults.

Unmarked quest: Toys for Tots
With The Pitt DLC, you can trade Teddy Bears for 30 caps each with Sandra or Midea, depending on which side you chose during Free Labor.