If you have a younger kid or you are worried about your kids rubbing bubble foam using soap in their eyes, this is a great alternative. Just keep in mind that some people are allergic to legumes/chickpeas.
Aquafaba is a whipped consistency made just from the water in a chickpea can. Drain a can of chickpeas into a stand mixer and beat on high for five minutes. You get a very similar dreamy, light, airy consistency as the typical foam from using soap. There are no other ingredients needed for this other than food coloring and chickpea water!