People used to be fucking stoked on buttons. There used to be a time when you only had enough money to get into a show, had to drink water out of the rusty faucet in the bathroom at the club between sets, and would trade cigarettes for buttons. Well, going to shows is still tight, drinking water out of the faucet at the club is how people get lock-jaw, and cigarettes are just dumb (they do make you look like a bad mother fucker, though). 
 
Support the cause, buy a button for two bucks, and head to the nearest local show with that shit on your demin jacket.