Instructions: paint, spread or squeeze glue onto a piece of paper. Sprinkle salt onto wet glue and shake off any extra salt from paper. We did this on a cookie sheet to avoid extra clean up. Mix food coloring and water and paint the salt with it. You don't have to wait for the glue to dry before painting. Once salt is painted, set aside to dry. This takes an hour or two but it's fun to watch as the salt crystallizes and the colors turn bright.