Lol I came across that photo lookin around yesterday, I was thinking of something similiar using rectangular cable duct, cut into pieces in the same way, the advantage is a lid that is made to click on... might do for a temp fix.
Hmmm could even use small hinges, cheap and soooo easy to make, only seen it in white and sometimes brown, looks like I am goin searchin the bowels of the workshop tommorrow for some black duct.
Even if I had to buy a length, 4 metre length of cable chain for around $10.00... priceless !!!
Watch this space...
Russell.