The "hot" toy of the year is the Mind Control gadget. You put a headset on, and by thinking about lifting a ball in a tube, the ball goes up. After practice, you lift the ball to 3 target heights.
Mind Control throttle?
For the pickup racers:
For level one - You think about buying a mobile home.
For level two - You think about putting your truck up on cinder blocks in front of the house.
For level three - You think about marrying your cousin.
BTW - It appears to work, my daughter is getting it to move, but can't fully control it yet.