Quarks can be represented on the faces of the 3×3 Rubik’s cube with the help of a symbolic representation of quarks and anti-quarks, that was
delevoped originally for a deck of elementary particle cards, called Quark Matter Card Game. Cubing the cards leads to a model of the nearly perfect
fluid of Quark Matter on Rubik’s cube, or Qbe, which can be utilized to provide hands-on experience with the high entropy density, overall color
neutrality and net baryon free, nearly perfect fluid nature of Quark Matter.
Read more at https://arxiv.org/pdf/1702.06217.pdf