Forget the egg with the spindly legs, Buff Humpty is an egg for the gym-bound set. The Buff Humpty sculpture and nightlight is a bright white glazed ceramic sculpture mounted on a frosted plexiglass stand that can be illuminated at night. Buff Humpty's musclebound arms and legs make him look as if he would beat you senseless if you let him take a "great fall." The lamp is the lateest egg-shaped nightlight from J. Schatz. He sells for $525 and takes a seven watt nightlight bulb.