Bill Watterson, creator of Calvin and Hobbes, has never licensed anything C+H related except for the collections of the comic. Coffee mugs, shirts, stickers with Calvin peeing on stuff...all bootlegs. The amount of money that Watterson gave up in marketing rights either makes him an artist with incredible integrity, or a dummy. Either way, a club that forsakes money and "the man" may very well interest Mr. Bill Watterson.
Or he watched someone else bootleg his property and got bummed out.