Thanks alot. I really like your tutorials. Nice props. It would be a good idea to put some magnets in the handle, to stop the blade from sliding down during performance 😊
I can see some 3D designing and printing for a plastic handle, and possibly using the blades of real knives - in theory only one magnet would then be required (inside the box). One could even design a secret locking pin in the handle so that an audience member could see it's a "real" metal knife that doesn't collapse.