The wooden stocks are a classic fairground game with roots in medieval punishment - the idea being that someone locks their head and hands through the board, and everyone else queues up to throw wet sponges at them.
They work particularly well as a fundraiser. Charge per throw or per bucket and the proceeds go straight to your cause. It's been a staple of school fetes and charity days for exactly that reason - simple to explain, no equipment to learn, and reliably funny to watch. The game tends to draw a crowd once the sponges start flying.
The hire includes a freestanding wooden frame, a large bucket and sponges. You supply water and a few towels; if you're running it indoors, a mop on standby is sensible. No power required, so it works anywhere you have enough floor space for the frame and a few paces of throwing distance.
Also known as medieval stocks, sponge-throwing stocks, or pillory hire - and often searched as "soak the boss game" or "soak the teacher game" depending on the occasion.
