No, this is definitely NOT a rant about one of the world's favorite cities. Everyone loves New York, but no one whines about missing it more than a NYC transplant. This gift should soothe the whining beast.
These Muji stamps (Muji being the wonderfully minimalist Japanese design company) bear the skylines of the Statue of Liberty or the Empire State building. Reduced to simple yet instantly recognizable outlines, the stamps work well on virtually anything (stationery, envelopes, as part of a signature). So your transplant, pining for good bagels, falafel on every street corner and the great culture, can stamp the NYC likeness all over their less satisfying life.
Best of all, each stamp is just six bucks! With that price point, you could buy them both and throw in ink pads in many colors (or not, since BLACK is the only appropriate NYC shade). Order them at www.momastore.org. And let the skylines shine.