Seriously -- in the 1970's there was the Stillman Diet (known for 8 glasses of water, and a few other things.)
One of the things he mentioned in the book was, "You've got a CRAVING? Maybe, for instance, for a MILKSHAKE? GO ON A MILKSHAKE DIET -- you can eat ALL THE MILKSHAKES YOU WANT. DON'T WORRY ABOUT CALORIES.
"Within a WEEK you'll be SICK of it -- you'll NEVER want to even SEE another one again!"