I'm using a 240mm Dozuki saw for several years now for my woodworking projects. Anyway, I managed to break its teeth while cutting a piece of wood without seen the nail that was in it. I replaced the blade soon afterwards; however I thought that keeping the old blade could be useful.
Eventually proven that was a useful thought.
Using the old blade, a sheet of brass and three pieces of wood...
I made, this
I hope you enjoy the video