I'll go first, images are mandatory
Stem: 3ttt Mod. 1 Record Strada (2nd version) - sleek, aero, fast, the chiseled shape is simply stunning
Seatpost: Campagnolo Colnago 30th Anniversary, it was a close call between this one and the chorus record aero shaped one but this looks a bit more unique
Crankset: Campagnolo 10s 5 arm cranksets with hidden bolt, I would have proffered mirror finish but the hidden bolt design even though in satin trumps the mirror finish.
Rear deraileur: Shimano dura ace 7700 25th anniversary, honestly that whole group is probably the best looking groupset
Rim brakes: Shimano dura ace 7800
Pedals: Shimano dura ace pd-7810
Headset: Campagnolo record