Ever played the children's board game Mouse Trap? These Britons decided to build a life-sized version in order to raise money for a hospice:
"Over a few pints a group of friends decided it would be a great idea to build a life size replica of the Mousetrap game... and here it is – The complete giant Mouse Trap day at the Lamb pub in Surbiton. We raised over £2000 for the Shooting Star Children's Hospice... brilliant day..."
Here's a video of the construction phase of the project:
This is the original Bay Area Masterwork.
Doesn't drop a cage, but a 2 ton safe.