So, on Saturday morning after the kids woke up, we got out the Thomas the Train set that we bought last year but never put out because the kids weren't quite ready for it yet. After a little set up and a lecture about when we can and when we can't play with the train, I let them play.
I know it's a simple thing, but the kids enjoy it, and I enjoy watching them and the enjoyment little things like this bring them. You can't tell by their expressions in the pictures, but they did have a pretty good time with it.