Well, I find this Origami Koi really extraordinary!
Links:
Origami Koi Folding Instructions
via: Origami Fish and Sea Creatures
via: Google search for ‘dollar koi fish origami’
via: how to make a origami dollar koi fish part 1
=> (video not available anymore)
via: One Dollar Koi for PSG
=> comment of orudorumagi11 on Apr 16, 2012
via: One Dollar Koi Origami
via: koi fish origami: from one dollar bill
=> the picture here is still more beautiful