"Sam I Am" hats. I have worked and created a much better version of this hat and it has been quite popular.
The other Dr. Seuss Hat in my shop, is of course the "Cat in the Hat" Hat. Dylan decided he wanted to wear a "Cat in the Hat" Hat for his school musical, tribute to Dr. Seuss and his birthday! Dr. Seuss is so talented, I have always felt a connection to his work, maybe it's because he is a Pisces too! ;)