No, you haven't seen these Dr. Seuss hats before.
That's because they were just created today. Happy birthday, Dr. Seuss! This is the best tribute I can think of. Kids read Dr. Seuss books, and followed him in his 3-toed, furry footsteps.
My kids created and wore these all day--and felt creative, silly, and regal all at the same time.
A very happy birthday, Dr. Seuss!