I finally made a digging box fof Polly and Katie. I bought an understorage box (two actually, for some reason they were sold in sets...) measuring 24 1/4" 14 3/4" X 11 high. Added about 4" of damp sand. Added the ferrets. It was a big hit!! They spent about an hour climbing in and out, digging, scooting, and snorkling. :-) :-) The set up isn't perfect. For one thing, in a perfect setup, every grain of sand would stay in the box and none would stick to the ferrets little paws and whiskers when they leave, to be tracked about. OK, I knew that would be an issue, but I still wanted sand rather than gravel, because I figured the sand would be more fun. I just couldn't see them snorkling in gravel. For now there is a towel on the floor, and that catches *some* of the sand. The ventilation isn't good. Not surprising since the box was manufactured to be airtight (one of those oversized Rubbermaid type deals, but a different brand name). I'm planning to either drill holes in the sides near the top, or cut sections of the lid out and replace the sections with fine mesh metal screen (to let air in but keep sand in.) I like the idea of mesh in the lid (because it won't weaken the box itself when it's lifted with all that sand in it), but I want to make sure they can't remove it and escape once it is hooked to their cage. (Any suggestions?) They are caged most of the time, and loose part of the time in one room (usually caged if unsupervised due to the ongoing issue with carpet digging... :-( ) In an attempt to increase air (and provide access) but keep the sand from flying everywhere, I cut about 1/3 of the lid off, and left the 2/3 portion over the top. For now they can get in and out the front. They can (and do) also push off the lid. So tommorow I'll be buying 1/2" black binder clips to hold the lid down. I want to hook it to their cage so they have access during the day. The cage already has drainage tubing attached; I need to cut a hole in the side of the digging box and hook it to a piece of drainage tubing. This will involve replacing part of the tubing which connects their two cages with a T joint (another thing I have to buy), so one end will lead to the box. In case anyone is interested, the pair of storage boxes was about $17, and the sand (50 lb bag of which I used about half) was $4. I have small ferrets (each of my two is about 1 1/4 lbs), and if anything, I'd recommend a bigger box than the one I got. And for all the fun they are having IN the box, Polly has not completely lost her desire to dig at the carpet itself. *sigh* Maybe once they have more access to it that will change. (Hey, I can dream, right?) Ilena Ayala and the two sandy-pawed ferrets Polly and Katie [Posted in FML issue 2219]