Making something out of old bras

So through the years I collected a whole lot of bras. Most of them don't fit properly, never had or not anymore. But, since they were quite expensive and also very nice so it would be nice to make something out of them I can wear. They are all lace, mostly black and more or less shine through, non padded bras. I can sew and I got a couple ideas, for instance, I could put the lace together and add it as a garment on shirts. Do you guys maybe have some cool additional ideas? They are 12 bras and the bras I don't use are going to charity since they are not very used but it would be nice to be creative with some of them :)