Got my first YN dollars in the mail yesterday. They have a pretty nice design, I believe they are meant to look like euro bills. It looks like you can earn them by doing activities and then redeem them at YN auctions!
You best hold onto it and start saving your YN Dollars, @Matthew Kruse. The ANA's YN auctions typically had some pretty nice stuff back when I was still one.
To bad on the age cutoff, if they did a maturity cutoff I might still qualify as a YN! Boys just grow older, they really don't grow up.