Make your own moldable sand with ordinary play sand, corn starch, and water.
One of the hot Christmas items this year was Moon Sand. But while it's certainly not a bank-breaker, it is costly for what is basically wet sand. So, I did a little digging around (pun intended) and discovered a way to make your very own moon sand. Here's the best part…the homemade stuff will set you back less than 60 cents per pound!
As you may know, there are several Moon Sand kits out there, and they come with all sorts of the usual play-dough style gadgets and molds. But if you just want a bucket of the stuff, the best deal I have found so far is at Amazon, where a 7 1/2 lb tub will cost you $18.74, down from $29.99 (at the time this article was published).
Link (Thanks, Will!)
