Well, they all are egg heads, arguably.
Details for the people: 1) hand-made in Nuremberg (Germany), in 2002 [eggcup2345]; 2) sold by particular from the UK [eggcup2395]; 3) Erin egg cup, made in China for Ganz (USA), it's one of the 12 models designed by Susan Paley for the Bella Casa collection [eggcup4098]; 4) "I'm an egg head" egg cup, made by Kreiss (USA) [eggcup1721].