You should make some Cloud Dough!
(image from here)
8 cups of flour
1 cup of baby oil
Mix it with your hands, and you have moldable wet-sand type softness!
(recipe from here)
I will, sadly, never ever be making it again.
Because, you see, I have an Isaac at my house
But, if your house is Isaac-free (how boring!), Do it!
Because it was really really cool!
Also, come get Isaac for a little while so I can rest.