@JulianOliver I wonder if you couldn't make some sort of "Artisinal data erasure service" out of this. Like folks send you a drive. You shoot it with arrows & photograph results (including serial numbers) and they can show off to boss / coworkers that they did it.
Might be an entertaining little side-stream of money with good word of mouth. :D
@masukomi @JulianOliver You could add a slow-motion replay as the arrow hits the drive. Maybe even an animation showing the amount of data obliterated.