Unapologetically Female, of which I’m becoming a great fan, brings us this item. 
The vibration is all about making your breasts perfect enough to forego a bra. Yeah, right. All about that. For other health benefits of vibration, readers may want to consult Rachel Maines’s fabulous _The Technology of Orgasm_, a history of vibrators’ use by physicians (since the time of Galen) to cure hysteria (womb wandering around the body) by inducing a “hysterical paroxysm” (which is nothing at all sexual).
Feminist Philosophers 
Kinky, really
i like the drawing of the woman ‘relaxing’ with her vibra-bra.