Beware of this terrain piece as wandering fools can fall into it's pit and be crushed by it's walls!
Built in about the space of a month. Scratch built with some trim touches.
Specs:
150x150x50mm
Functional Lift
Pit Doors (slide open)
Pit with Crushing walls (Future version will have changable walls)
Pit floor tilt + Lever
Garbage disposal door (spring close, trigger release)
Barbed Wire trim
Optional trap (potentially can be completely buried into ground and covered with sand)
Entered in Base Competition.
Front - Lift in down position. Pit doors/walls in open position

Side view
Pit doors in closed position. Lift in up position

Front View. Lift in up postion (also reveals storage space).
The pit's Moving walls. These will be changable in the future.
What they do!
Pit floor with floor being tilted to clear pit of garbage (victims)
Lever to tilt pit floor (one of the early skull sculpts) +
Plunger (In depressed position, Moving Walls in closed position)

The Back. In the centre is the Disposal Door. Pull on the ring in the mouth of the head to release the door. The rectanglar piece with 2 holes in it is the plunger for the moving walls. To the far right is the lever to tilt the pit floor.

Disposal Door. Big enough to put your finger in.
Pull the ring in the mouth to release the door.
Here's a video (1st vid ever done) of it being made in it's testing phase using brake fluid.
At 01:16 you get to see the lift in action.
Here's a link to see the WIP and people's reactions - Death Pit thread -