A pretty awesome and cool-looking Mario board game made out of papercrafts, it's called "Mario World Board Game" and its from graphic design artist Ashley Buerkett. Not a real board game though, just a concept design.
Mario World Board Game Papercraft
Paper Mario Diorama [Related Posts]
Kid Icarus Papercraft Diorama
Donkey Kong Papercraft Diorama
Mega Man Papercraft Diorama
Metroid Papercraft Diorama