Although not as prestigious as Californian or overseas varieties, Michigan wines (http://www.michiganwines.com/) are growing in respectability, with significant vineyards in the southwest e.g. St. Julian, Tabor Hill, Fenn Valley and northwest Lower Peninsula e.g. Leelanau Cellars, Good Harbor, Chateau Grand Traverse.
Stroh's was one of the last of the great traditional Michigan breweries and a Detroit-area staple, but is now made out of state. However, local breweries can now be found throughout Michigan. Some of the more widely available Michigan beers are Bell's, Arcadia, Atwater, Michigan Brewing, and Founder's.
Two native brands of soft drinks called "pop" by the locals are Faygo perhaps best known for strawberry-flavored "Redpop" and the 1970s top-10 single based on their TV jingle, and Vernor's ginger ale with its distinctive tangy taste and gnome mascot. The national brands own the restaurant and vending-machine business, but these are available in stores.
Michigan's bountiful apple harvest is often used to make fresh apple cider, and cider mills are abundant in the apple-growing region. They are only open during the harvesting season in autumn, but, if you stop by, you can get cider by the gallon not "hard" cider or just a cup of it, hot or cold. In Michigan, cider is traditionally drunk with cake doughnuts; most cider mills make their own doughnuts fresh on the premises, so you can get them piping hot, and rolled in cinnamon sugar. Most also sell other apple products, like baked goods, apple jellies and butters, and apple-related products like cookbooks and mulling spices.