Hey hun.
Rice boobs are a little bit of a test that quite alot of girls on here tend to do so they can work out sizes thats right for them.
Basically you measure out rice so for example, I had 410cc breast implants so you measure out 410 grams of rice in some scales.
Then you get an old pair of tights and pour 410 grams in one leg and 410 in the other. so the rice ends up in your foot bit of the tights. Then cut the tights off and tie a knot in them and bobs ya uncle you got ya very own implants. 
Hope that makes sence
Works a treat. x