My son's going as Harry Potter this year- no hat required.

His head is GIANT. So big that they told me when he was a baby that he would likely have autism. They were working based off of some marker that kids with extreme head growth in the first year are more likely to be identified. Nope, no autism.

We call him Sputnik- if you've seen "So I Married an Axe Murderer" it's a reference to the scene where Mike Myers' character is commenting on the kid's giant head.

Funny story- DS has heard us say "It's like Sputnik" probably a thousand times in his life. He thinks it's hilarious. We have a little shtick we do where one of us says a line and then someone else says the next one. A few years ago we were in line for Haunted Mansion in Disneyland. The castmembers are supposed to look extremely serious, even menacing. DS clunked his head into me and I said "Head, MOVE!" and DS responded with the next line. The castmember started laughing so hard he had to excuse himself from the post to catch his thoughts.

If you have no idea what I'm talking about, you can find the movie clip on You Tube. DS hasn't seen the whole movie, just this scene.