It's called Water Wow and its by Melissa & Doug, so you know it's good!
Also, they have a 5 star rating on Amazon with like 500 reviews.
Here's how it works:
It's a spiral notebook of heavy-duty cardboard pages and a chunky "pen".
It has a paintbrush like tip so it isn't really a pen, but that's what they call it.
You open the pen and fill it with water.
Then, each page is a plain white picture that when you color on it with the pen, color comes through!
At the end, you end up with a really vibrant, colorful picture and with no mess and no chance of kids coloring on things they shouldn't!
The best part it when it dries, which takes maybe 2 minutes, it turns white again so you can color again immediately!
I bought a pack of 3 for $15 but I just saw they're on sale for like $12 HERE
We only let Spencer use these at church on Sunday's, so it's a special treat for him.
But we have a road trip coming up that I think they will be an excellent distraction for as well.
I've also heard they're great on airplanes.
Here's a little video to see it in action (from my phone so its a little blurry, sorry).
