[Updated 6/16/08] Sorry if the Google Video didn’t work. I replaced it with the Youtube one. [/Update]
This is really cool! I haven’t tried it yet, but I’ll give it a shot soon. I’m sure Felicity will love it! I wonder if you can add color somehow? Maybe putting food coloring in water and mixing the sand in before you put it in the oven to dry. If anyone else tries this, let me know.