Ryan Overturf goes over the concept of Modular Cubes, that is Cubes composed of multiple separate components that can be shuffled together and mixed and matched, his history with this kind of Cube, and how Spooky Cube ended up being the modular environment that really clicked for him. 

Spooky Cube Cube Cobra page for reference: https://cubecobra.com/cube/overview/867d1264-7328-4bfb-a4b8-29990d73dcaa