Darcy,
last year, we just rolled up to VMX central where this really ugly guy called Ajay was hangin out and he had them there.
VMX central is obviously the magazine headquarters at the event.
or you can make your own. last year was funny as i stuck mine on my shirt, but then i'd throw a jumper on over the top and forget about it or whack on a different shirt etc, maybe 3 name tags would be the go...
keep your eyes open and you'll find your way.