If you need something novelty, then Motorola has your answer. With a few flicks of your phone you can control tiny RC cars, called Wireless Wheels. The cars are compatible with select Motorola iDEN handsets. Here’s an excerpt from the press release:

Wireless Wheels are full-function radio controlled toy cars that give consumers a multi-sensory racing experience. Combined with Motorola iDEN handsets, users can view simulations of their car’s movement via animation on the phone’s screen, hear the engine start and the tires squeal as they race, and feel the phone vibrate in their hand like the steering wheel of a race car. In addition, the Push-To-Talk (PTT) button serves as a “turbo boost” for a sudden burst of speed.

Motorola partnered with Nikko Ltd which is the world’s largest manufacture of remote control toys.

Press Release