The SAFE. You'd think it'd stand for "Some Armed Ferret Enchiladas", "Sonically Ambiguous Fluorescent Email", or the office favourite, "Soobity Arbitty Froobitty, Eh?". Instead, it has nothing to do with any of those things. We're tricky that way, you know.
No, this marvelous contraption of laser-cut acrylic is a complete box enclosure for your Freeduino or use an Arduino UNO or Duemilanove by pushing out the acrylic knock-out for the USB jack. This version is made from incredibly sexy acrylic in 4 different colors. It's so good lookin', you won't need to use a Arduino shield anymore, just mount your accessories on the SAFE inside, outside, wherever!
Oh, and it also has an external switch lever that mates with the power switch on the Freeduino SB - way cooler than cutting power wires every time you want it to turn off.
Design inspiration and elements borrowed from Parallax's Multi-Board Enclosure.