A big hit in our house recently is Kinetic Sand from Brookstone. However they make it, it reminds me of a cross between beach sand and play doh. The nice part is that it’s not a huge mess like normal sand would be – it sticks together, but it still feels like sand and it molds like it would on the beach. It never dries out and it has some special properties that make it soft and stretchy.
Love it! You can currently get 2 for $25.