This link is mostly for women doing some sports - you like when you are doing some sports activity and sometimes breasts get in the way of your performance? So this website features a Flash application that lets you choose you cup size, type of activity you plan to do and then shows what type of sports bra you should use for that. There will also be a realistic visualization of how that sports bra will perform, how a regular bra would perform and how it would look to do that au-naturel.
Note: The link is NOT work safe!
P.S. Guys that love Baywatch should also check out that link too. You will not be disappointed ;)
P.P.S. Geeks should check out the wireframe mode :D