White Christmas...white BBQ sauce!

First, Merry Christmas! Whether or not you celebrate the holiday, most of you are off today, and I hope you enjoy it. People are posting pictures online of snow on the ground, so some of you are getting the ever-so-enviable white Christmas. White snow got me thinking about white BBQ sauce, not least b/c I am in Alabama right now, and Alabama claims the mayonnaise-based white sauce as its own (pictures below from meals in Alabama). I only know of place or two in Texas that offer white sauce, but surely there are more purveyors of which I am unaware. Regardless, I'm curious whether those of you who've tasted white BBQ sauce like it and what those of you who haven't think of such a thing. Thoughts?