A flat object on which beverages are put to protect the surface of a table.
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She came around to Ethan, all smiles, and tossed a drink coaster down in front of him.
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Cork-backed drink coasters of which I was unaccountably fond featuring a black-and-gold abstract pattern of what looked like boomerangs.
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On one table, there's a set of original wheels, hardly bigger than drink coasters, lying next to a box of shift knobs.
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The pessimist who designed it will doubtless be pleased to know it is now being used as a drinks coaster on Royle's desk.
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Drink coasters are shown for sale in the gift shop of the Monroe County Heritage Museum in Monroeville, Alabama October 23, 2013.