Rules of the Name Tag

Doing a name tag right isn't easy. Here are my rules:
a. BIG first name
b. positioned in a place where you can see it
c. ideally two-sided, on a short lanyard (why on earth would you make a one-sided lanyard tag?)
d. a piece of information that is an ice breaker. Here's my latest example. Every single sticker had a different picture. No real logic behind it. But what if there was? What if attendees picked their favorite movie star, metaphor, state capital, political gaffe, Saturday Night Live skit... anything worth talking about? -Seth Godin