Niall and Cory got these fun critters for Christmas. They start out very small (a few inches long) and after soaking up water for a long time (like a week or more), they grow BIG! If we had them in bigger containers, they would probably double in size, but this was all the counter space I was willing to devote to the project. I'm not sure how much longer we'll have them sharing our kitchen with us, so thought I'd share a picture while they're still impressive-looking. When you take them out of water, they slowly shrink back to their original size.