After reading the article I'm still kind of unsure what the process is. You meet a fellow pilot / famous person / rando and ask them to sign a $1 bill which you then attach by tape to your "short snorter". Maybe they ask what's going on, and so you sign a $1 and tell them to hold onto it always, because if you ask for it and they don't have it, they owe you a drink / $1. Is that how it works?