Persons of a certain age will remember these collecting tins for the RNLI in shops. Put a coin in the slot in the top of the boathouse and you launch the lifeboat!
Once launched, you had to carefully slide the boat back up the ramp until it catches and stays put. Naughty boys can push it most of the way up, let go and see it roll again. I never did that.
Don't forget the RNLI still needs donations to keep them afloat.