Superegg

In geometry, a superegg is a solid of revolution obtained by rotating an elongated superellipse with exponent greater than 2 around its longest axis.

The shape was popularized by Danish poet and scientist Piet Hein (1905–1996).

Supereggs of various materials, including brass, were sold as novelties or "executive toys" in the 1960s.

The superegg is a superellipsoid whose horizontal cross-sections are circles.

The exponent p determines the degree of flattening at the tips and equator.

[3] The volume of a superegg can be derived via squigonometry, a generalization of trigonometry to squircles.