Thanks so much for all the info!
I will indeed, then, be wearing my lanyard "for show".
I really like the idea of putting some traders on there too so that kids don't get disappointed... that's what I was most worried about.
I'll be watching for the CMs with the blue lanyards. I feel like I need to trade with them at least once, just to say I did it.
I didn't even know they had locking backs - I will definitely be getting these. Do they sell them at any pin store/stand?