A Christmas tree is decorated with marijuana leaf shaped lights at the Grass Station marijuana shop on Black Friday in Denver

A Christmas tree is decorated with marijuana leaf shaped lights at the Grass Station marijuana shop on Black Friday in Denver

A Christmas tree is decorated with marijuana leaf shaped lights at the Grass Station marijuana shop on Black Friday in Denver, Colorado November 28, 2014. This is the first Black Friday since marijuana was legalized in Colorado January 1, 2014. REUTERS/Rick Wilking (UNITED STATES – Tags: BUSINESS)