Here’s a cool DOTKLOK by Andrew O’Malley, an open source Arduino-based clock that displays a series of unique time-telling animations:
A fanstastic Open Source Arduino-based clock that can display the time in many different ways: if not enough, one can also add his own personal animation.
Via Open Electronics.

Awesome Work with the matrix!! Great Project..
It’s a really cool project. But it’s almost a bit of cheating using a pre-made matrix unit from Sure Electronics…
I’d go crazy waiting to see the time during the animations when flipping the digits – they are far too long. But since it’s open source it should be easy to fix yourself :)
Very nice clock !
I would like to buy a kit but it seems that the shop owner is still on vacation :-(
Bo :o)
Just a heads up that I still have a few original Dotklok kits left, and am discounting them 15% until the end of August 2015:
http://www.etsy.com/shop/andrewomalley
Cheers,
Andrew
Just use the code DOTKLOK15 . . .