I love this idea. We have seen the car wash with water but what about one on days that it is to cold or you just don't want the kids wet. This site goes through the steps to do this. They even made a small one for inside. FUN!!
Homemade floam is easy to make and SO FUN! It can be molded and shaped but is also squishy and gooey. It has a really unique texture that is irresistible to touch. It is also much cheaper than the store bought stuff!