It's actually really easy to make.
Here is the cornstarch & water:
Then I added food coloring to each cup:
We had four colors:
The kids had fun painting the driveway!
I think the only thing I would do differently next time is get bigger brushes.
They were all sitting there painting away, being so good.
Then I made the mistake of telling Lily to flick some paint at Zach.
Then this started:
I think the flicking paint at each other was more fun than the actual painting. ;0)
They were covered with paint!
Good thing it all washes off with the hose! :0)