Only thing worse than doing good bourbon as a shooter is mixing with anything besides an ice cube or two.
As far as Iowa bourbon or whiskey, to answer your question, would be to get a bottle of the real Templeton Rye. I hear there is still some made locally. I saw a picture of a bootleg bottle, it was in an old Jim Beam bottle with duct tape as the seal. I'm not sure it wasn't a hoax, the guy that showed me the pic is a true bourbon connoisseur.