Egg Cross

I searched on Google to see if there were equations for the shape of an egg. In doing so I learned that a point in the middle of a connecting rod traces out an egg shape. I then derived an equation and entered it as a parametric curve in SolidWorks. This was fun for me since I like math.
Anyway, here's another reward I'll give out to students who do their Bible memorization work. The photo is of a 1" tall egg I printed. The model is designed to only need a little support material on the bo