matter alien maker? My kids have the martian matter alien maker play set. We have bought numerous refil sets and have too much metor mud, but keep running out of the lunar lava. I have not been able to find any refil kits that contain only lunar lava. I don't want to buy anymore refil kits because we just don't need all those extra parts and all that metor mud, I just want the lunar lava. So I was wondering if anyone has a recipe to make our own lunar lava at home or if hasbro offers refil kits that contain only lunar lava gel?