Some of my favorite things that Henry has been thankful for are: his little brother Charlie, ambulances, police cars, fire engines, baseball, and grandmas and grandpas (or as he likes to say, damas and dampas).
I took Henry to get his hair cut a few days ago, and while he was sitting in the chair, after a few seconds of silence, he asked our hairdresser, "So, what are you thankful for today?" It was incredibly precious. We really need to make a habit out of writing down our thanksgivings, it does wonders for the soul. I have a few ideas percolating, so we'll see how I do with them. But for now, our thankfulness tree does the job quite nicely :)