Cupcake Vineyards, located in Monterey County, California, have been making wine since 2008. As stated on their website, the wine label gets its name from the rich flavors in each of their wines - the tropical notes in their Chardonnay, the deep cherry aromas of their Merlot, the fresh berry notes in their Cabernet Sauvignon, and the lemon/key lime flavors in their Sauvignon Blanc.
I have found a couple of the Cupcake Vineyard wines in the Wine Store in Salt Lake City. If you can't find them locally and are unable to visit Monterey County anytime soon, then you can possibly order them online by clicking here.
They also have recipes on their website for gourmet cupcakes like Chocolate Blueberry Cupcakes and Lemon Rosemary Cupcakes along with the wine that pairs perfectly with each.
Update (9/30/2011) - Cupcake Vineyards now has Cupcake Vodka. Flavors include; Original, Chiffon, Frosting, and Devils Food. Click here to learn more.