I haven't come across this discussion on this board or I may have missed it but I tried using bath puffs in place of my heavy swim prosthesis. I bought the "mini net sponge" at Walmart for 78 cents a piece. They fit perfectly in my mastectomy swim suits with pockets. You can even tie the string in a knot to form a nipple!
I came across the instructions on another website to unravel a bath puff then roll, twist and sew but for me, the mini's work fine as is. I have my old suits and if I sew pockets in them they'll be ready to go too. I bought some jumbo puffs at first and wow, they were jumbo! Way too big. I say the minis may be around a B cup size.
So to whoever came up with this idea first...THANK YOU!!!!