A coaster doesn’t just protect a surface from stains and scratches — it also gives you a chance to show off your personality and style.Whether you’re entertaining guests at a dinner party or cozying up with a hot tea on the couch, a cute coaster somehow makes that beverage more special — and protects your furniture, to boot.We placed drinks on dozens of coasters made with an array of materials, from stylish felt to whimsical resin, to find our favorites.