What are bumper stickers on your car if not a way to communicate with drivers who are waiting behind you? It’s almost like a Facebook status on public view, if you come to think about it. So if you’re to deliver a message to complete strangers, why not make it a funny one? It could make their day, just like others could make yours. And here we have some bumper stickers that do just that, having the main objective to deliver a pun right in your face.