If you're looking for "instant" flavored coffees, Kraft Foods has a line of beverages marketed under the General Foods International Beverages
label. There may be some others on the market but these are the only ones I remember seeing.
If you don't mind brewing your own then there are a lot more options, including English Toffee and Irish Cream. Some come pre gound and packaged, sometimes you can get the whole bean and either grind it at the store or take them home and grind them as you need them. Gourmet shops, gourmet coffee shops, Whole Foods Market, Central Market, even my local Albertsons just down the street carry them.