Let your holiday spirit soar to rooftop heights with this Clark Griswold Christmas mug that's brimming with over-the-top cheer. The clear glass cup features an illustration of Clark holding electrical cords with a collage of Christmas lights surrounding him and a fun Clark quote on back. Set the mug on the green base, included, to see the mug glow with light and hear zapping sounds and music from "National Lampoon's Christmas Vacation." This funny mug makes a great gift choice for fans of the hilarious holiday movie.