The Wall Street Journal blog has a post about Law Firm Names That Are Funny. For example:
Payne & Fears, Low, Ball & Lynch, Bickers & Bickers, Ball & Weed, Gunn & Hicks, Allen, Allen, Allen & Allen, Ice Miller, Weiner & Cox, Held, Held & Held, Bull & Lifshitz, And the famous MoFo
Many more at the WSJ Law Blog: Link - Thanks John! (Image from &y [Flickr])
There's also a firm in town called The Nice Law Firm, and another called Guy Law Firm. I am absolutely astonished that they have not yet merged.