Paper face mask printed with a color photo of an authorized user, with a hole cu...

		michaelt on March 1, 2014 \| parent \| context \| favorite \| on: Show HN: Chui – The World's Most Intelligent Doorb... Paper face mask printed with a color photo of an authorized user, with a hole cut out for the nose, according to [1]. Of course, breaking a window is probably less bother. [1] http://www.ipc.on.ca/images/Resources/cons-bio.pdf‎

Hmm, that's interesting, thanks. Link is down, though.