A simple equation: sin(x*y) + sin(y*z) + sin(z*x) generates a coral like cube.
I took the corner and designed it as a Lamp Shade.
Thickness: 1.3 to 4.5mm
Material Volume: 105 cubic cm.
At the base there is a an entrance 30mm wide for a bright LED.
3D Print it with your favorite material thou White Nylon is recommended.