I picked up a surplus 5 inch CRT many years ago (electrostatic deflection, with long persistence phosphor). At the time, I had the idea of building a vector graphics display. I may still do that, but lately I've been trying to think of other unique ideas. So, I thought I'd just throw this out here to see what you folks might come up with.
BTW, don't even think of mentioning a scope clock.
BTW, don't even think of mentioning a scope clock.