Check out this article on DNA Origami. Apparently, a scientist has discovered how to fold long strands of DNA using short DNA staples as a binding medium. The staples can be designed by a computer program and ordered from a laboratory. Then, the strands are heated in a salt solution and come together in whatever shape you designed.

DNA SmileySnowflakes

In the future, this could be used to build molecular electronics. Kind of cool to think about, something so small, about 100 nanometers across, being folded like a piece of paper.

Check out the article at Live Science.