I've been thinking...
Given the strategy and thinking I got from your reply, I'd probably bring in the Balvanie
particularly the 15 year old (single barrel to bottle).
If I am not mistaking it lives in a bourbon cask. It also is one of if not the most bourbon influenced single malts I've ever enjoyed. The brand commands good ratings and is recognized by most single malt enthusiasts earning better than passing grades (by most).
That said, your friends might train the tenders when pouring for a patron, to direct the patron to particularly pay attention to the bourbon influence in the said dram. Perhaps a skipping stone to the wider selection of American whiskies available at the said location.
I know when a strictly bourbon or American whiskey drinker says I want a scotch that I can relate to and won't smash my ability to enjoy, I often recommend this item (Balvanie 15). On most accounts the bourbon enthusiasts have been able to relate to it and does not wince at what they taste. I don't think it is limited to me either as I've since seen others recommend the same item under the same or similar circumstances. Maybe this is the item your friends can turn in the opposite direction bringing a Scotsman to America
(which was what the lightbulb was about above).