Aruino Holder

I was reading the Arduino's Inventor's Guide, and it makes reference to an Arduino Holder. Where can I buy this?

Do you mean a box or a holder?

oomlout.co.uk do an acrylic board which will house an arduino duemilanove and a breadboard. I've just had a look at it seems it's bundled with a duemilanove and breadboard: http://www.oomlout.co.uk/arduino-prototyping-bundle-ardp-p-186.html

I have a couple of starter kits from oomlout which include these, but I also have a couple of acrylic holders on their own, so I know they sell them separately...