I remember something like 5 years ago when they had star wars 2x2 rubik's cubes in cereal boxes. It would be cool if you could order your own cartoonish face as a rubik's cube. And for those who're really good at the rubik's cube, they could order their own 7x7 rubik's head. They would cost a lot though as getting them personalized would take a long time and the production of each different piece would also take long. But it'd be pretty cool and a good money making idea for Rubik's.
Then you could really call it 'a case tête' which means puzzle in french but is said 'head breaker' in english.