Core77

They're from Kozo: http://kozo-lamp.com/

Hi
The designer is David, he is a young israeli designer and here's his site:
http://www.kozo-lamp.com/

These are for sale on Etsy: http://www.etsy.com/shop/Design2009?ref=seller_info

David Benatan, apparently:

http://www.dezeen.com/2009/03/31/kozo-lamps-by-david-benatan/

Its not mystery designer at all. The team of designers called DEMO Design Clinic has developed first kind of lamp KOZO about year ago.

Here are reference for KOZO lamps site.
http://www.kozo-lamp.com/

That lamp is the Etsy KOZO3 Designer Desk Lamp, that was being sold on Etsy for about $230. It's not available anymore to the best of my knowledge.

Here is where I first saw it (more than a year ago...)
http://www.uncrate.com/men/home/lighting/kozo3-desk-lamp/

I came across these same lamps a while back on etsy.com, you should be able to find the designers through the url above. I love the quirkiness that these lamps posses, each has it's own character.

They are Israeli designers called "DEMO"- design clinic.
http://www.kozo-lamp.com/

Awesome! I am a plumber in Malvern in the united kingdom. I have been since I left school 20 years ago. I had no idea that plumbing fittings could be either vaguely attractive or useful in any other way than to convey water. I think the girlfriend will be getting a cutom made lamp for her birthday. Made from fittings from the van. Yes I'm that cheap!

Paul - Local Malvern Plumber

Here's the Etsy shop:
http://www.etsy.com/shop/Design2009

This guy makes similar lamps that were in the movie Runaway Bride: http://herbhoover.com/ihd/

Here is a YouTube video that DEMO >> design clinic uploaded of how they craft a lamp.

http://www.youtube.com/watch?v=gMnt0WiJ6Yw

It has a nice rhythm and the sound & bit is that of the actuall work tools used to assemble the thing. Its a cool video!