I'm looking at buying a few of these http://www.adafruit.com/products/801 Protoboards to go on top of my Raspberry Pi. I would prefer to use a breadboard but it seems that there isn't a solution that allows me to neatly stack several breadboards on top of a Pi (I have quite a large project planned).
These protoboards seem to be the right kind of size for that to work, but I was wondering how I could support several of them stood on top of each other? This is on my desk, so space is really at a premium, so the likes of the Dish kit https://www.adafruit.com/products/942 wouldn't work.
Also, if you had any other product that might fit I would be grateful if you could point me in the right direction.
Thanks in advance

