Liquid Play Doh is a preschool creation. It is made of a third flour, a third water, and a third salt. You put paint into the water portion to color it.
After it has been made, it goes into a squeeze bottle and the kids squeeze it onto paper (or cardboard, or a paper plate, etc.).
It is fun for them to squeeze and mix colors.
For us, the little guy just wanted to paint. The older guy liked mixing it, but said my little squeeze water bottles were inferior to the real squeeze bottles at school.
Regardless, we were able to create a joint masterpiece.