Bengineering's classic print Legs for eggs is nearly five years old!! My, how time flies. I just wanted an egg with feet, no legs. I used Blender to combine the upper leg socket with the foot piece. The torso piece is identical to the one in Bengineering's original Thing.
The foot isn't perfectly symmetrical, but it's close enough that you don't need a separate STL for left-foot and right-foot. Just print two feet and a torso and make an eggy friend!