1. Go to Wikipedia.
2. Select your language and choose the Random Article link
3. Use the topic on the resulting page as the basis for a thematically-obsessed Batman villain.
You can use this image to introduce your new Bat-villain to the world at large. I've already done a few:
I dunno, I thought it was funny ...
(PS, I'm using Letter-O-Matic from Blambot fonts. Please don't use Comic Sans, it is awful)