Gone are the days of “Coexist” or “This car climbed Mt. Washington.” Bumper stickers have lately gotten a lot weirder, and much more niche. By Charles W. McFarlane You can spot them in the ...

Gone are the days of earnest “Coexist” or “Free Tibet” bumper stickers ... giving way to zanier plays on the vintage sticker like “Honk if you have a smooth brain.” ...