To make a raining rainbow fill a clear container with water and cover the top with shaving cream. Drip food coloring onto the top of the shaving cream. Then, watch and wait until the rainbow begins to rain through the cloud of shaving cream. We were so excited when the colors started "raining" down from our cloud of shaving cream! (I admit that I was more excited than the girls!)
The top of the shaving cream looked really pretty!
After we watched the raining rainbow for a while, we placed pieces of white card stock onto the colored shaving cream to make prints. The girls loved this part the most of all, and they somehow ended up covered in shaving cream! We scraped off the shaving cream to leave behind a swirly and colorful print, but I forgot to take a picture of the final product.
Simple, beautiful, messy, and fun! Doesn't get much better than that!