Quite a bit of interest in the Twin Peaks Soundtrack Design post below and I was reminded of this one sitting in draft status.
1086 Productions has done Mashed In Plastic, a series of mash-ups of the music of David Lynch. Here's a teaser:
Not a big fan of most mash-ups but somehow these songs mashed up with songs by AC/DC, Nine Inch Nails, The Beatles, Dead Can Dance and others don't seem out of place in the David Lynch universe. In fact, they seem to make more sense.
Skip on over to the Mashed In Plastic website for a free download of the soundtrack and/or video.