Christmas Vacation Funny Door Mat Welcome Mat Doormat Shitters Full Coconut Fiber Coir Mat Outdoor Door mat... 5.0 out of 5 stars 1 customer review . See Buy Options Okay, we just couldn't help ourselves :). This is a classic folks and who doesn't love the infamous line from Christmas Vacation?! Funny & adorable SHITTERS FULL CLARK door mat. Size is 26x18". 1/2 thick with a reinforced & durable vinyl backing.