HMS Totally Sinkable
This model boat was hand built by my Grampy, some time just after the second world war. The really cool thing about it is that it’s got a button in the middle of one of its sides, which if you hit, sets off a concealed mouse trap causing the boat to explode!
Currently, it’s missing the ball bearing which triggers the trap, and something to hit the button with (another ball bearing perhaps?) But apart from that, it’s fully functional, and liable to take your fingers off as you set it.
Who says toys should be battery powered, made of plastic, and safe?