I ran across one of the more truly funny, albeit disturbing, sites I have ever seen the other day. Take a peek at it – http://www.colonblow.com/.
Surpisingly, they did a pretty good job on creating a website to drive sales. They use humor extremely well, write in a manner that draws you in and keeps you interested, and focus on moving you through the sales process.
For those strong of stomach, check out the poop pictures page.