Popular wood and metal coffee mug styles include storage racks that hold mugs in containers beneath rows of hooks and stand with up to eight branches that hold mugs. There are also a number of different wall-mounted storage racks, including expandable wooden wall racks that hold up to 13 mugs and under-shelf racks for use inside cupboards or open shelves
Bed Bath & Beyond sells a five-piece mug tree set comprised of four stackable mugs that nestle on top of each other within a metal stand. The store also sells a range of mug tree sets in matching colors and trees in retro designs or contemporary constructions using silver, copper or black steel.
Amazon.com features a range of mug racks and stands including circular metal stands that also serve as drying racks, metal under-shelf racks with up to 10 hooks and expandable beechwood or natural bamboo wood racks that adjust to fit the available space.
For a more traditional style, Pottery Barn sells a black cast-iron style Vintage Blacksmith Mug Tree and DutchCrafters sells a range of wooden mug trees handcrafted by Amish craftsmen, including one that is also a Lazy Susan.