If you are good at doodling (like some people I know) and you have a long commute on a train or a bus. This is what you should absolutely do. 🙂
See many more of such hilarious pictures here. [link]
.. manila folders ! Check this beautifully handcrafted and assembled model of Boeing 777 model. Designer Luca Iaconi-Stewart has been working on this since 2008, and it has shown. Wow.
See more pictures here -> [link]
The concept of natural dualities is everywhere. The Chinese call it the Yin-Yang. It is there in several places in Hinduism as well such as the Hari-Haran duality. The Ardhanaari duality etc.
Anyways, during one very contemplative after lunch walk, I found this to be a classical duality example.
(Shot using my blackberry and post processed using ipiccy.com)