Espirals

These are called Espirals and were invented by Tomoko Fuse. I made and photographed two so that you could get a sense of what the finished pieces look like from both straight on and from the side.

There are videos of how to make this piece on YouTube. The one noted below is particularly good - extra points for the great "music to fold by" - Greensleeves played on what at first sounds like a harpsichord, but which is likely a mandolin or other similar instrument.

http://www.youtube.com/watch?v=-Pmr2fdt_ms

Not only is the Espiral really easy to make (just be extra careful to observe the handedness of the folds), but the end result is quite rugged and can be repeatedly thrown against a wall by a manic 5 year old boy with little ill effect. That's rare for a finished modular origami piece.