I pulled a new sponge out of its wrapper and started using it this week. The first thing I noticed was that it was big. But, unlike some of the other sponges we've used, it wasn't super-stiff, so the size wasn't a drawback. It's also kinda fuzzy, like an animal (as Mary noted).
I must admit, I kind of like using a sponge that reminds me of a hedgehog.