Ian's suggestion of the 14th at Gleneagles hits the nail on the head for me - a short par 4 that is generally easy, yet can put egg on your face if you get it just the littlest bit wrong. Perhaps add, from this side of the pond, 12th TOC, 15th Royal Dornoch, 10th Royal Lytham, 11th Sunningdale Old, 3rd Ganton, 15th Nairn, 4th Little Aston, 6th Hunstanton, 9th Royal Worlington, 18th Conwy.