Back when I was in art school, we were given an assignment to make "an artist's toolbox". After some consideration, I decided there was no definitive artist's toolbox outside the artist's own mind, so I made "The Creative Brain".
It is made of coloured wires, xmas lights, a small container filled with water and an aquarium aerator. Back then I called it The Creative Brain, and I still do... but in my growing maturity as an artist, I realize there's some heart and soul in the thing as well.
A brain hums, a heart pumps, and a soul casts light, n'est pas?