The officially licensed Downton Abbey mugs are sold on the PBS website, PBS.org. Other mugs inspired by Downton Abbey are sold on Etsy.com and Amazon.com.
As of August 2015, there are six official mugs for sale at PBS.org. Each mug features a different quote from Lady Violet, the countess dowager of Grantham. Each mug holds 16 ounces and is microwave and dishwasher safe. The mugs sell for less than $20 plus shipping.
Several sellers on Amazon.com also sell 11-ounce Downton Abbey mugs for around $10 plus shipping. Handmade mugs with various designs are sold by artists on Etsy. These mugs range in price from $12.99 to $22.00 plus shipping.