I can't decide - though i'm thinking probably tacky.
Just came across these place cards whilst looking for some on ebay. My room is very elaborate (First Class Dining Saloon on board the SS Great Britain) and i'm going for minimal (i.e. none) decoration. There will be white table cloths and either a single gerbera flower in a test tube style vase (fuscia pink) or a fish bowl type arrangement with a floating gerbera head and grass.
Anyway - here it is... and that's my room...