What is the deal with this stuff?

Dad taught me when Line was a baby that the best stuff for diaper burn was cornstarch powder because of the way it soothes and pulls the heat out of the burn. Ever since then we keep a box handy with the diapers and wipes. Our toddlers just can't seem to get enough of that stuff. Luckily this time Naki caught it before it became too bad. The first pics are of Eva...

When Lose did it as a toddler it was much much much harder to clean up.

I know. . . I'm asking for a mess because after this experience with Lose I still didn't wise up to the fact that I shouldn't keep it where they can get into it. At least they had fun while making the mess.