I rig your toaster with explosives.
When you put in your bread the next morning, and press the little lever down, it goes off, and sends you flying into a nearby cabinet, and you hit your head on a shelf and pass out.
When you wake up, you are strapped to a large metal slab, and suspended above a chasm.
The lights turn on, and the slab lowers into the crevasse. At the first glace of a heating element, you realize what is about to happen.
The elements begin to glow red, then orange, and finally white hot.
At first, the heat is merely annoying to you. But as the metal slab behind you heats up, it begins to sear your skin as the air in front of you ignites.
Your burning skin and bubbling innards send you into shock, and you slump into unconsciousness as the heat finally begins to work on your brain, boiling it in your skull.
Thirty minutes later, your charred corpse is lifted out of the mechanism, and unceremoniously dumped into a pit.