Jonah and his buddies are completely obsessed with Silly Bandz, which are rubber bracelets that spring into animal shapes. They get them from the video game store and from 7-11 for a few bucks and stack them up their wrists. They trade them after school. Jonah and other tweens around the country are completely obsessed, until the next dumb craze starts up next month.
There are a couple different companies that sell them, but as Steve learned from the clerk in the video game store, both companies are owned by some dude in Oklahoma who punches them out of rubber that gets from China. He's made millions.
Why can't I think of something like this?