The bounce-ometer lets users “measure” their breasts’ bounce, but instead of using boring graphs or formulas,the site uses a Flash-animated simulator. Shock Absorber – UK line of sports -bras, has a flash-based boobies-physics simulator. Plug in a cup-size and a level of activity, and it produces a 3D animation of breasts of that size bouncing free, bouncing in a regular bra and hardly moving at all in one of their sports-bras…

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STEP 1: BAND SIZE
Measure under your arms, high on your back, across the top of your
chest. If this measurement is an even number, this is your band size.
If  an odd number, add 1″ to determine your band size.

STEP 2: CUP SIZE
Measure loosely around the fullest part of your bust. Next, subtract your band measurement
from your bust measurement; each inch represents a cup size. For example: if your band measurement is 34″ and your bust measurement is 36″, the difference between these measurements is two inches, and you’d wear a B-cup.