One of the mods is actually my creation, but when I made it I was very unskilled with creation kit and ended up scripting half of the mod into my skyrim file itself rather than a separate .esp, so it's unlikely to be of use to anyone until I find the time to redo it.

The other one can be found here: http://thedarkspot.com/forum/showthread.php?10688-Female-decapitation-in-video-games&p=285159&viewfull=1#post285159

I think this was a derivation on my work, and some of the scripting problems may remain.