Good one, Denny.
Kai, thanks for the pic. It looks like a real pain to make and clean!
I was perusing my old beer mags this weekend and saw a 3-D MLT design in the BYO issue (OTTOMH, I think it was the July/August 2008 BYO issue, or there abouts). The pics are in the article on "Turbid Mashing". It seems that they've incorporated the 3-D lautering manifold into the mash stirrers.
Regardless, I'm not sure it would be easily implemented on a homebrew level.