Bluetooth-enabled "CharmingBurka"

Markus Kison's CharmingBurka is a Bluetooth-enabled Burka that sends a photo of the wearer to nearby mobile phones. From the project description:
 Img 2433The Charming Burka deals with Freud's idea that all clothes can be positioned between appeal and shame. The Burka was chosen, because it is often perceived in the west as a symbol of repression. A digital layer was added so that women can decide for themselves where they want to position themselves virtually. The Burka sends an image, chosen by the wearer, via Bluetooth technology. Every person next to her can receive her picture via mobile phone and see the women's self-determined identity. The virtual appeals can not be gathered by the laws of the Koran and so the CharmingBurka fulfills the desire of living a more western life, which some Muslim women have today.

Therefore the Burka is equipped with bluetooth antenna/micro-controller and uses the OBEX protocol, already working with most mobile phones.
Link (Thanks, Jason Tester!)