Hacker help: Got a swiveling desk tray?

Description: I was referred to IKEAhackers.net through the Design forum on Craigslist. I bought some swiveling desk trays from IKEA two years ago and the item has been discontinued. I'd like about six more of them. I'm contacting you now in the hopes that you or a visitor to your site may know where I can find something similar before I commence to 'hacking' IKEA's design (not IKEA's materials) and fabricating my own swiveling desk trays out of frustration.

I've included pics of the wonderfully simple, efficient, functional, and affordable swiveling desk tray IKEA once offered. Thanks for reading. And cool site. I love re-purposing stuff.

~ Clint, San Diego