Here is a GeoGebra version of a Moss Egg, from a book by Dixon, Robert, called Mathographics. Dover Edition, Mineola N.Y., 1987.[br]There's an online source by Freyja Hreinsdóttir called Euclidean Eggs, University of Iceland, Lifelong Learning Programme, at the site[br][url]http://www.dm.unipi.it/~georgiev/club/progects/DYNAMAT/PUBLIC/D9_EBook/PDF_English/IS_EN_01_B_Euclidean_Eggs.pdf[/url]