Foam Breast Forms - Source?

I have not had reconstruction and have done fine for over 9 years now, with just foam breast forms. I have been buying them from the TLC Direct catalog, but they are a little expensive there. In addition to the expense of them, sometimes I receive foam that is more dense than the previous forms. I have even received 2 forms marked the same size and they are not exactly the same size, and one seems to be made with denser foam than the other. I am a little irked at the price, since I am sure they have about $2 (or less) into making them, and I sometimes feel taken advantage of. So, I thought I would see if anyone here has a better place to purchase them. Thanks for any advice or recommendations. I am just buying the foam forms - not weighted - and each one is kind of formed to extend under my armpit a little. They call them unweighted asymmetrical forms. Thanks for any info!