The building blocks of origami -- Elephant design -- Traditional bases : stealth fighter, snail, valentine, ruby-throated hummingbird, baby -- Splitting points : Pteranodon, goatfish -- Grafting : songbird 1, KNL dragon, lizard, tree frog -- Pattern grafting : turtle, western pond turtle, koi -- Tiling : Pegasus -- Circle packing : emu, songbird 2 -- Molecules : orchid blossom -- Tree theory : Alamo stallion -- Box pleating : bull moose, Black Forest cuckoo clock -- Hybrid bases : African elephant -- Algorithms.