Stupid Oscilloscope Tricks W/Arduino

I got that scope back in 1986, and I paid $461 for it. A Rigol DS1052 costs about $330. However, this scope is pure analog - no "funny business" going on inside that baby! But ... I'll probably buckle and get a new digital scope, I mean, the screen colors are so pretty ...

Here's a hexagon - Looks better in person because my camera effects the image.