This is a video from Youtubers Sam And Niko of a GoPro mounted to the blade of a katana while it slices through things (mostly watermelons with faces drawn on them). It documents their whole process from trial-and-error experimenting to final shots, so feel free to skip around and especially towards the end if you just want to see the melon slicing. I was so inspired I-- "Why are you taping a GoPro to those scissors?" Because I want to see what it looks like to run with them, and my mom never let me when I was a kid but I'm a grown, independent man with a place of my own now so I can do what I want. "She just left for work didn't she?" If you tell on me I'll kill you.
Keep going for the video.
Thanks to blue16, who plans on doing the same thing with an axe during a Lord Of The Rings battle reenactment. I want to be an archer.