I think coasters went the way of ashtrays on the table. If I'm at somebody's house and I'm having a drink I will use a napkin or a coaster if it's available. I usually just hold my drink until it's gone shruggy

Gus beer now where is the coaster for my spare beer???

64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60