I had basically given up on finding wedge boots in a size 12 that I could wear under jeans and would not attract undue attention, but would also have a decent-size heel.
Found these little babies at Nordstrom, 3" heel, low-rise boot. At $240, this is the most I've ever paid for shoes, whether male or female, but I'm getting a bonus this Christmas, and sometimes you just have to do these things.
http://shop.nordstrom.com/S/2900541/...bo=6004875&P=1
If for some reason the link doesn't work, go to Nordstrom.com and search for "Donald J Pliner 'Isada' Ankle Boot".
Will let you know how they work out when they arrive.