I'm a bit stuck for a main present for DS. He will be just 6 at Christmas (December birthday) and says he doesn't know what he wants. DD has asked for a scooter but DS says he doesn't want one. He already has a bike (which he never rides), Nintendo DS (which he doesn't play with), virtually every Playmobil thing in existence and several tonnes of Lego. He's getting more Playmo for his birthday and some spiderman fighter figure things.
He likes knights & castles, dinosaurs, superheroes, books but isn't especially into sports. Any ideas?