1 c water PER BOTTLE
1-2 drops food coloring PER BOTTLE
spray bottles (buy from Dollar Tree or H-E-B for .99)
There are 2 ways you can mix this up. You can pour one c water in each bottle and use a funnel to pour the cornstarch in, or you can mix it all up in a large measuring cup and pour it in.
Shake and spray!
For over 200 more ideas of fun stuff to do with your kids, check out my summer bucket list.