The National Lampoon's Christmas Vacation Got a Little Knot Here 9FIFTY A-Frame Snapback features an embroidered Got a Little Knot Here, You Work on That Russ wordmark and Christmas light knot graphic at the front panel. Additional details include an embroidered National Lampoon's Christmas Vacation wordmark at the right-wear side with a red Christmas light print fabrication, a snapback closure at the rear, and a gray undervisor.