To make your snow paint, mix equal amounts shaving cream and glue. I just eyeballed the amounts, then enlisted some little hands to help with the mixing.
And then it's time to paint! It's such a nice, slimy texture- perfect for painting and exploring. Billy wanted to taste it too, so I made sure to stay extra-close on hand. He still wants to put everything in his mouth, which makes for interesting creative times together. We painted a few on cardboard and a few on black construction paper. They've all held up nicely, but I do especially like the contrast of the paint on the black paper. It reminds me of snow falling at night.
Once you're done painting hang them up and let them dry. For us it was a couple days of, "Can we touch it yet? Can we touch it yet?" Then take them down and let the poking and prodding begin. Be prepared to be amazed... and to be asked to make more (wink).