Warning: the following patterns are not actually useful, but they are visually interesting.
1. Glitchy Circuitry: a robot's motherboard as a canvas for abstract expressionism
2. Retrofuturism: a steampunk-inspired robot's inner workings
3. Neon Dreamscape: a robot's motherboard as a glowing, pulsing dreamscape
4. Cyberpunk Utopia: a robot's circuitry as a dystopian metropolis
5. Futuristic Frenzy: a robot's motherboard as a kaleidoscope of color and light