Stop sign, take two

Unlike the picture below, this took only one click to create:



This reminds me of the pictures I used to draw as a kid where I colored a piece of paper a bunch of different colors, then painted over it in black, then drew a design on it with a paper clip. Or something like that. I don't remember the exact technique. I kind of want to do that again.

I love how the mushroom looks like it's smoking a cigarette. Or a joint. You know, because it's that kind of stop sign.