Tonight, I found a giant Lego and decided to see what Ink would do with it! He has been playing with it non stop since I put it in! He seems to like being able to wrap his legs around all the shapes! It is very buoyant, so he really has to work at getting it down to the bottom of the tank. Right now he has worked it all the way to the bottom and is currently hiding behind it! I think he has a thing for smooth plastic! My daughtor is pissed and wants her toy back but I'm afraid she's gonna have to wait til Ink's done with it!