About the sexiest airplane for ramp appeal I have seen is the Cheyenne 400 with those 4 blade props that look like they were stolen right off a P3 Orion. Anytime I ever saw one at an airport I always had to do a walk-around! Would make a great model too as it has very generous vertical stab area.

http://www.controller.com/listingsdetail/aircraft-for-sale/PIPER-CHEYENNE-400LS/1984-PIPER-CHEYENNE-400LS/1281329.htm