Just figured out a way to use those randomized corpses

Here is it:
1. bury 5 corpses in a cross shape, better with the same corpse type.
2. dig out the center one.
3. bury a randomized corpse in the center.
4. check whether you got a rare craft option, e.g. "20% chance to craft and additional item"
5. if you got one, move to a new spot, otherwise repeat step 2, 3, 4

With this setup you get 5 craft option rolls per randomized corpse, good luck ;)

Was there ever a different way to use them that I didnt know about? :p Thats how I used all mine at least.