Instead of actually designing a set of knives to match their individual purposes, designer Mia Schmallenbach turned to math to tell her what shape they should be. The beautiful Meeting set is the result of drawing a diagram based on the Fibonacci sequence and almost literally joining the dots.

via Beautiful Nesting Knives Designed by Mathematics | Gadget Lab | Wired.com.

Also, the price is OVER 900 (dollars, that is)!