This Product Tank concept employs an innovative solution to the problem of toastables that are oversized in either length or width. There are no slots and the walls close in like your bread stumbled into a booby trap.
Of course, instead of crushing or impaling, these walls toast your bread to death. The crumby lifeblood falls into the pan below and can be easily removed and cleaned for the next victim. Again, Product Tank is only a concept, but it has potential. [Product Tank via Core77]