Ball
Just a simple ball.
Cube
A cube with nicely rounded edges.
Donut
Standard Torus (R = r = 1).
Ring
Torus with R = 5/2 and r = 5/6.
Egg Cake
Torus with R = 9/5 and r = 6/5.
Dupin
Dupin famous spiral!
Nipud
Another one of Dupin's famous spiral.
Elliptic Eight
A polynomial of degree 6.
Eight
This is composed of slices of two donuts.
Twisted Eight
Kind of two Donuts put together with 90 degrees angle to each other.
Chain Donut
Infinitely many donuts pached together.
Triple Banana
This polynomial of degree 6 contains a monkey saddle.
Gorilla Donut
Some kind of Wanna-Be-Lawson surface of genus 3.
Monkey Donut - Kidney Style
Looks like a Kidney bean.
Monkey Donut - Tire Style
Merging three tires together may also results in a Monkey Donut...
Monkey Donut - Egg Style
Outline looks a bit like a (symmetric) egg.
Tetra Donut
Kind of a thickened tetrahedronal wire frame.
Tetra Donut - Tire Style
Kind of a thickened tetrahedronal wire frame in Tire Style.
Tetra Donut - Kidney Style
Kind of a thickened tetrahedronal wire frame in Kidney Style.
Cube Torus
Kind of a thickened wire frame of a cube.