Which is odd, because Adam Rakunas's post on the subject implied that Zazzle had told him they'd written on behalf of Tolkien's heirs. I've written to both Rakunas and Zazzle for an update.
I'm sorry for misidentifying the Tolkien estate as responsible for this inanity. While they have used copyright threats to censor at least three novels tangentially involving Tokien's characters or personage (that I know of), this button wasn't their fault, it was Zazzle's.
Tolkien estate censors badge that contains the word "Tolkien" (Thanks, Steven!)