Cube

Cubes:

They are used as identifiers for Neutrino based beings from the N̊̇̓N̸̏͟N̶̷͠N̯Nͦ̑̀N͗͒̀Nͮ͑̓NNͭ̀͢Nͩ̉̇N͂̽̏N̡̧͞N͟͝͝Nͬ̏ͬN̄̀̎N̹͎̣NNB̖̮̗Bͣ̋̾Bͧ̌ͪB̡͞B̭ͭ̄B̀ͧͦB̕͢B̨B͋͝͡B͎ͬ̋B̓ͥ̂B̉́̂҉͙͉̥B̙̰B̡B̵͢͠B̂ͯ͋-th dimension

A blank cube: