I based this off of a recipe I saw in Alton Brown's "I'm Just Here for the Food". I was a little nervous, based on what I have read about them, that they would stink up the house, but they didn't at all. The "potlikker" was awesome!
2 lbs. washed collard greens, stems removed, and cut in 2 inch pieces
1/2 c. cider vinegar
3 c. water
2 smoked ham hocks
Put greens in crock pot, add water and vinegar, and put hocks on top. Cook for 10 hours on low. Remove hocks and cut up meat and sprinkle on top, if the idea of eating ham hocks doesn't turn you off. Serve with Franks Hot Sauce and a side of cornbread.