Virgin Galactic has licensed a set of “Limited Edition” models of the WhiteKnightTwo and SpaceShipTwo combo. They are available in 1/400 and 1/200 scale die-cast models at B4 YOUR FLIGHT.
Don’t see any SpaceShipTwo models at Amazon yet but there are several SpaceShipOne models, e.g.
Scott Phillips creates beautiful wooden models of the Space Shuttles:
WAFF-TV: News, Weather and Sports for Huntsville, AL;