when I worked at REI, every Diamondback bike we assembled came with a "fork direction" sticker, but it was not affixed to anything. I started collecting them and now I have a decent stack. I like to keep one in my pocket and stick it to forks at Target, Walmart, Academy, etc. There was a fat bike at Target with a backwards fork to which I adhered one of these stickers, and I came back to check on it every few months. it was still there, with the backwards fork, for several months.