An anthropomorphic dog from Oh Say Can You Say who asks the readers/viewers if they're having trouble saying the stuff in the book/video and says that it's really quite easy for him as he looks in his mirror and sees what he says and then he says what he sees.

In the Dr. Seuss Beginner Book Video version of this book you will see him a second time but this time he is holding a sign of The Fuddnuddlers.

Dog with a Mirror