A real life Eyedropper tool! This is awesome. A pen with a little censor that scans the color of the object you point it at, then you can write in ink that exact color, it's like the eyedropper tool in photoshop outside of the computer.
When you're in a busy parking lot use a "safety spot" on the side of your car while you unload the stroller, etc. Your child should place their hand on the safety spot and not move until you tell them it's safe and they can hold your hand.