Does anyone here know anything about testicular augmentation using hollowed out silicon testicular implants? (I don’t have enough posts to make a new thread here)

I have one testicle that’s very small due to a childhood operation. I saw in an obscure thread the mention of testicular augmentation where, as best I can find on Google, a hollowed out silicon testicular implant is placed over a testicle to make it bigger. I suppose the implant might first be cut in half, then glued on, I don’t know. Either way it would be nice to have my undersized testicle the same size as the normal one. Anyone know?