For Christmas we got W a building game from Pottery Barn. They are flat wooden pieces that fit together in one way or another. It's actually a very tricky thing to get them together but it does encourage creativity. So I took them out yesterday afternoon and he was hooked. I am constantly impressed by his patience and perserverence. I did most of the actual fitting together while he handed me the pieces and told me where they went. He was insistent on building a 'tall tower' high to the sky. It was way taller than him. And after it finally fell he went about fitting in more pieces together himself. My little engineer.