It turns out we're not the only ones who've looked for them, and they're just not that easy to find these days. Crayola's "Color Wonder" has apparently taken over this market niche. But we did find a few here and there. We found a few on Amazon including a Care Bears book and Spot's Busy Day.
From perusing other blogs, it seems they're often spotted in dollar stores or the dollar section at Target.
Still, it's a relatively mess-free activity young toddlers and toddlers will enjoy. And here's a little tip, if you want to avoid too much water saturation, give your toddler a Q-tip to paint the water on with rather than a paintbrush.
(Image: Unplug Your Kids)