Life sized plastic skull complete with woodcutters axe and blood.
Its a nice sized Halloween prop that will look great wherever you place it in your home or dungeon. Just add a bit more fake blood for a really gory display (sold separately).
You can also carry it around with as a good murderous psycho accessory.
This would look good on a makeshift chopping block on the approach to your home, or as part of a set piece about dismemberment in the garage (doesn't everyone have one of these?)
An Axe is the tool of choice for any self respecting psychopath.