I haven't seen exactly what you're looking for, but Mercedes and VW had spare tire tool boxes. You might check your local wrecking yard or ebay for a Mercedes box, or you can order a reproduction VW box to cut up and create your own molded socket/ratchet insert. These boxes were used in Porsche 356's as well.
VW Round Box Toolbox
$218
http://www.socalautoparts.com/...cludes-tools-p-16651$129
http://www.piersideparts.net/MB15-2016.html Pre-94 Mercedes 500E version:
Here's one on ebay - $90 BIN:
http://www.ebay.com/itm/MERCED...600SEL-/161576700892 Frankly, it just looks like a styrofoam insert. I imagine you could go down to TAP Plastics and pick up some kind of foam/polyurethane molding kit and make your own insert (pour into a cake pan of the right diameter, cover with plastic wrap, and start sticking your sockets and ratchets in any layout you desire).
The Hyundai Elantra uses a molded spare tire insert to hold the jack and associated tools. Again, carve it out and make your own insert. $239 new - ebay or your local wrecking yard would be the place to start.
http://www.hyundaishop.com/hyu...e-tire-kit-j074.aspx Saab had a similar molded spare tire insert for their jack and tools as well - this one was for sale for $40 on a Saab forum a few years ago.
Looks like the Honda Civic Si had a similar spare tire molded jack & tool kit.
http://www.ebay.com/itm/2006-0...%26sd%3D301233262902 VW Passat Molded Spare Tire Tool Kit - $47
http://carparts4sale.com/trunk...-lug-wrench-cp029759 Generic Round home tool kit - $69
Throw out some of those crappy home tools and dump your favorite socket set in there!
http://www.hsn.com/products/ti...2SgMwCFa8W0wodkTwCpQ