[niazangels]

a qr clock :)

[Gurrewe]

I started to create one a while ago. But I found out that there was really no use for it. :D

http://x42.se/

[taproot]

What use did you think it would have when you started? o.O It is cool though.

[niazangels]

Hey, thats pretty cool :D Well, atleast its buildable in 4hours, right? :)

[joeblau]

That's a pretty awesome idea!

[nwh]

Here's a physical one — http://hackaday.com/2012/10/29/qr-clock-is-unreadable-by-hum...