Dame Judi Dench, Dannii Minogue and Isla Fisher are among a host of female stars who have decorated bras in aid of breast cancer charity Cancerkin.
Highlights include a short story about a woman's relationship with her breasts written on a bra by award-winning novelist Naomi Alderman; one hand-stitched with individual peacock feathers by milliner Nerida Fraiman; and a pair of 'blue tits' painted by actress Maureen Lipman.
More than 40 women including authors, presenters, musicians and comediennes have taken part in the initiative which will also raise money for the Jewish Community Centre for London.
The bras will be sold on an online auction from Sunday until February 28.
Singer Rachel Stevens said: "I'm really pleased to be involved with such worthwhile causes.
"It was great fun designing the bra to reflect my mind at the moment - baby's bottle teats and a bit of glamour! I hope the auction raises lots of money."
Comedienne Sue Perkins added: "Most of us will be touched by cancer at some point in our lives.
"As I wrote on my bra, I'm not the world's greatest artist, but this is a great way to raise awareness and it's amazing that so many big names from comedy and entertainment have put pen to bra to support the Big Bra Auction."
The bras, which have been donated by Triumph, will also be displayed at an event at London's Comedy Store on Monday.
They will be sold at www.jccbigbraauction.org.uk.