Banjo-Tooie Easter Egg - Juno & Vela Posters

Near the start of the game you pass through Bottles' House where you meet his family. Each of his two kids (Speccy and Goggles) have a Jet Force Gemini poster in their room, one of which is a poster of Juno, the other of Vela. Jet Force Gemini is a game developed by Rare, who also developed Banjo Tooie, and Juno and Vela are the two main characters in Jet Force Gemini.