Tips for Tits

I need some advice: I've been using plastic bags filled with water for tits. The weight is right, the jiggle is right, but they "slosh" something awful. Not a problem for now, when I'm doing all my dressing in private at home, mostly for the sake of photography...but should I eventually have the courage to go out fully dressed, I want to have something better.

You girls who dress in public regularly--what do you use to give yourself a womanly pair of knockers? Remember--I'm about six feet and weigh about 190...I'm giving myself a 42-D bust, so something that emulates little B cups for a slender young thing won't do.

Any assistance would be greatly appreciated.