You might try
www.ritzcamera.com. They still have quite a few of the Cropper Hopper products in stock. I, too, have been looking for the 3" x 3" x 13" embellishment drawer, and have been unable to find them. It appears that Cropper Hopper is discontinuing them - they're not on the Cropper Hopper website any longer. Ugh! Just about the time that I figure out an organizational system, the products are discontinued. Guess I'll have to figure out another method of storing my ribbon. I would say that your best bet of finding what you want is online - Overstock.com is a good resource for discontinued things, as well. Oh and Addicted to Rubber Stamps, too.
Hope this helps!