Floam claims that if you let your creation harden overnight, it will be completely dry and you can keep it forever. But this varies.
Some consumers claim that it was as hard as a rock once it dried out and it stays that way for years. However, there are some people claiming that they manage to moisten it and re-mold it, but the texture was not as smooth that time.
As per Qvc.com, once you broke one of your dry creations try using school or craft glue, or another piece of wet Floam and pushing them back together.
If your kid likes to make special composition, here are some cool project ideas using Floam shared by Partybluprintsblog.com.