Last year I bought a copper-colored vinyl decal with a loose schematic of the Antikythera mechanism on Etsy. (For bonus points, it was even shipped from Greece.) Originally intending it for a wall, I decided it looked better cut in half behind the stainless bars of the refrigerator. The bars contribute to the mechanical vibe.
I was worried the thin strips would not hold up to the rough environment of the kitchen, but nine months later it still looks great.