Wilson, Elser, Moskowitz, Edelman & Dicker (US employment law firm–coolest jingle of all; click the “INTRO TO WEMED” link); Studio Legale Sutti (Italy); and Becerril, Coca & Becerril (Mexico).
The WEMED one is the coolest one by far. There was another Italian firm I saw a few months ago, that had a “disco/modeling runway” type theme (naturally), but now I can’t find the link. If you know others, let me know.