Old thread, but I recently purchased this from Menards of all places....
https://www.menards.com/main/lighting-ceiling-fans/indoor-lighting/lamps/table-lamps/photon-lighting-river-led-desk-lamp/32037bl/p-1501760953084-c-7497.htm?tid=7827028196836801238&ipos=1
It's made in China (what isn't?). Not the highest quality build, but it has a dimmer and is nicely shaped. I have seen a very similar light by Redleaf Audio (might actually be the same source manufacturer), but it is twice the price.