Warhol Style Concertinas Coaster

If Andy Warhol had played the concertina then perhaps he'd have painted this instead of Marilyn Monroe? Not sure whether he'd have been an English or Anglo concertina player, or whether he'd have played folk music (probably) or some alternative style.

Made from 4mm thick medium-density fibreboard, these square coasters are finished with a high-shine gloss and have a protective cork underside.