I imagine a fictional clock with 3 hands. Each hand has three other hands attached to its outer end, which in turn has 3 other hands fastened to them. All hands have random length and initial position and are rotating with random spin and speed. The motion of hands adds up: for instance, each second-level hand rotates on its own and also because it is joint to a first-level hand which is itself rotating.
Crucially, all random choices in this fictional clock (length, position, spin and speed of hands) are completely determined by the text of a haiku — a very short Japanese poem with seventeen syllables and three lines. I used the hash of the haiku as a source of randomness. Hence, we have:
Orologio a tre cuori implements a one-to-one mapping between haiku and imaginary clocks. Furthermore, each clock hand leaves a trace of transparent color on the canvas. We only see this ephemeral overlaying colored trail, not the hand itself.