Guillotine on wheels

[Mattai]

Wow, I think Contestant #1 wins the prize, for me. Much cleaner cut. Contestant #2 is more "smooshed," which for whatever reason, doesn't really get my blood flowing.

I wonder if there is a difference in the trains? Perhaps a study could be done...

 

[Katharsis]

When I cannot find someone to take my head, this is the second choice.

 

[Pacific]

Another one...

Appears to have a nice ass.
Thanks PiercedChest.