Found body art.

Yoko Ono's film Bottoms consisted entirely of footage of the undulating asses of her friends, up close and personal. Eadweard Muybridge's pioneering experiments with moving images used loincloth-clad soldiers and nude ditch-diggers. But when it comes to absurdist nude art, the Bounceometer is a found-art venture that has them both beat. Created to sell (apparently upscale) sports bras, the obviously NSFW site uses computer animation to simulate bouncing breasts in sizes ranging from A to FF to G, from various angles and with varying degrees of vigor.