I've Got Mail: Hot Wheels

Yes, Barbies were my first love growing up. But I've always had a strong love for Hot Wheels – and have found renewed interest in them now that I have a 4-year-old gearhead in the house.

The new Hot Wheels Color Shifters are particularly cool. Using "color memory technology," this latest generation of tiny vehicles can change color if you give them a dip in cold water (even affecting those flames on the side!). The car goes back to its original color as it warms back up to room temp.

There are 60 die-cast classics in the collection – from camo to rescue – and retail for $2.99 each. The Hot Wheels Color Shifters Color Blaster playset (say that three times fast) allows car nuts to customize and launch their rides into racing action. The set also comes with a spray gun and dunk tanks. It retails for $22.99.