I just read that, in fact, no woman actually burned her bra in public in the 60s. It was made up by the media, and "burning your bra" became a meme:
http://www.campaignlive.co.uk/article/fiction-history/1417802
That's a shame. And now it's too late. Bras are made of high quality flame-retardant material.
Women should do what I do when I'm protesting: burn the spare ribs, burn my shirts when I'm ironing, burn myself using the glue gun. That kind of thing.