Manhole covers have long been a popular subject for modern art photography and books. Usually made from cast iron, their symmetrical designs vary greatly from city to city around the globe, and often give travelers a reason to keep their eyes on the ground and not towards the sky. Though few design-junkies could dispute their graphic appeal, they don’t exactly look like something you’d want to touch — let alone snuggle. Still, these sewer cover printed pillows, from In the Seam on Etsy have their charms. We love these soft metropolitan tributes. Chose from Detroit, London, Boston, Seattle, New York and even, Catskill! $42/each.