While at The Home Depot yesterday, I stumbled across these: http://www.homedepot.com/p/Commercial-Electric-1-in-UV-Mounting-Base-Black-100-Pack-HW-4ACB/203531921

This sparked an idea in my head, and a couple hours (and one 5/32" hole in my finger) later, I ended up with this:
[attachment=0]19787429_10155689489387871_3901038575276613421_o.jpg[/attachment]

The mounting bases are stuck on 1-1/2" wooden disks I had lying around from a previous project  (although I'm thinking of moving to metal washers so they can be stored using magnets). The posts are cut from 5/32" styrene tubes; the side posts are 3/4" long, while the front post is 3/8". I initially put posts on all four sides, but that made it exceedingly difficult to reach the die.

Speaking of which, the square in the center holds a 10mm die, which are pretty cheap: I ordered a lot of 30 from Amazon for $8.

Anyway, hope you all find this helpful!