There is something alluring about the ugly holiday sweater - embarrassing, thrilling, horrible and delightful. In honor of the world's ugly sweaters and the grandmas who lovingly gifted them, we're giving a just-for-fun McMenamins Passport stamp to anyone in an ugly sweater.

To get the stamp: Wear your ugly sweater of choice to any location, and let your server know you're wearing an ugly sweater - we aren't here to judge, after all!