I've joined forces with the hobbyDB team to create a database of every Starbucks Mug ever made! You can use hobbyDB to manage your collection and wish list, show it off, find values for your mugs, and to trade, buy and sell. We currently have four volunteers and would love to have more join the team. If you'd like to help, contact the guys at hobbyDB.
Starbucks City Mugs 
Is this mug available for purchase?
No, please try Ebay or Amazon. Thanks.
Why does it have a mug of beer on it? As far as I know Detroit isn’t known for beer more than any other American city would be.
It’s not beer (although if it were, Michigan is very well known for TONS of amazing breweries). It is actually a mug of rock and rye Faygo soda! 🙂