That poor pink dog.
OK, how's this for tacky? There is a cul-de-sac near my in-laws' house where every family except one decorates their house along the lines of that pic PiKA2001 posted. We're talking big brightly-lit nativity scenes, animated reindeer and sheep dotted around the lawn, Santa and his sleigh and reindeer on the roof, animated "choir angels" in the front windows, roofs covered in lights, and at one house, a big brightly lit sign that reads "Merry Christmas from the _____s!" People come from miles around to see the spectacle, and the intersection at the end of the block is inevitably a fustercluck. You can probably see it from space. Con Edison must love these guys.
Unfortunately, I don't have any pictures. I think that if I tried to take a picture, my camera's lens would break from the tackiness.