"Kenneth Kawamura's butterfly ball is a deceptive (origami) action model. Assembled from twelve water bomb bases, it forms a complex and pleasing geometric shape known as a cubohemioctahedron. The assembly is stable when resting on a surface. However toss it in the air and give it a light smack to see it explode into a cloud of butterflies which flutter prettily to earth. For this reason, it is also referred to as a butterfly bomb."Instructions for this exploding origami may be downloaded here. Also available are printable patterns to make the individual pieces of the ball look like actual butterflies.