The white plastic (PVC) pieces have a nasty tendency to loosen up and fall apart over time, so I've glued mine together... which precluded its disassembly for photography. I also made one with black plastic (ABS) which retains good fit and stability even after repeated disassembly... but have since given it to friend, and when I went back to Home Depot to take pictures, they were out of stock... perhaps word is already out and people are making Spiro-Didges? There is a small price difference between the black and the white plastic, I'm not sure if one is always cheaper than the other... if you want to glue it into a permanent shape, it won't matter; but if you want to play around with different shapes, I recommend the black plastic (ABS).
A year or so ago, I made a video with the black Spiro-Didge, showcasing my fantastic skill... *note massive sarcasm in preceding statement*
Spiro-Didge video on MySpaceTV