Possibly the most perfectly honed example of authors who have built a whole world around their writing are the Zero Lubin collective behind Lubin Tales. Zero Lubin have created a marvellously darkly kitsch world that could be lifted straight from the twisted outtakes of David Lynch, which perfectly complements the set of suburbia-on-acid shorts in Lubin Tales, and their world extends beyond the web and some fabulous merchandising to live theatrical installations that bring sinister creations such as The Poodle Faker to life.
So there we have it - the perfect self-published book. It's actually remarkably similar, you might say, to the perfect book. And you'd be right. In short, any book can be the perfect self-published book - just have a bozo idea and execute it perfectly.