We were not expecting to find a fanless CPU cooler on Etsy, let alone a 6000 euros one, but here you go. "We propose a new silent heat sink design to quietly cool your processor! The base would be 3D printed from either solid copper, bronze, steel or aluminium, depending on your budget. The upper portion consists of metal balls with a very high surface area-to-volume ratio, in order to absorb and dissipate heat faster to the surrounding atmosphere." We're not sure how such a dense structure will perform - especially without heat pipes - but this cooler is definitely museum-worthy.
Source: Etsy
