Wednesday Links: Ballet, Draw-bots and Katanas

Yet another selection of hand-picked links from all over the interwebs:

Visualizing Ballet
.. using Lilypad Arduino. Looks beautiful, produces drawing-like results and helps dancers to trace their movements for necessary feedback. (Via Arduino blog)
Tiny CNC-bot
Beautiful little Piccolo, in it’s second incarnation (first one was all clear acrylic).
3D printed Katana Case
Is it katanas that make 3d printing better, or 3d printing makes katanas better? Either way it works. (Via Designboom)
MIDI Tine Organ
This not a random set of words, it will make sense if you read the article. (Via Hackaday)
Spine and Cellphones
These cell phones! They are the ultimate evil! (Via