I had Ocean squeeze out the entire bottle of conditioner (great fun!) and then just kept adding the cornstarch until it was the right consistency. We mixed in a bit of food coloring for some pastel colors.
We then raided the "junk drawer"- I'm not ashamed to admit that we have quite the collection of hodgepodge and miscellanea- and selected some choice pieces. Viola! Our junk-drawer, cloud-dough, amorphous creature family was born. I think they're quite endearing.