Sam made this cool double helix out of [http://en.wikipedia.org/wiki/Geomag Geomags] the other night, as we were sitting around the office.
[img[/img/misc/geomag-helix1-t.jpg]]
[img[/img/misc/geomag-helix2-t.jpg]]
[img[/img/misc/geomag-helix3-t.jpg]]