Have you ever wondered if your kid might be the next Carl Lewis or Lance Armstrong as he sprints or rides his bike around your street? Now you can easily measure his speed with an inexpensive toy radar gun from Mattel.

The cool-looking Hot Wheels Radar Gun lets you clock an object's speed whether it's coming towards you or moving away. It has a point-and-click handle that you press to get a speed display appear on the LCD screen. At just $30, this is great for getting the speed of someone biking, but we wonder how fast something has to go before a real radar gun needs to step in. — Nino Marchetti

Hot Wheels Radar Gun, via Red Ferret Journal