Fun With Nihilism
It's kind of terrifying how well they go together! To be fair, they did have a few things in common to start with: They were both preachy, and extremely creepy, albeit in different ways.
There is a Random Generator page, but you can also combine them by hand to comic-trageditastic effect for treatises on various subjects:
Love (also makes a great mother's day card!)
Thoughts And Feelings