The toaster. Alone and forgotten on that clearance table at the MUL electronics store. It works just like a normal oven.... until the moment you move it to somewhere else which somehow breaks it.
So, I was thinking, now that we're getting all these improvements for microwaves and ovens, why not give the toaster a bit of a limelight as well?
For starters, a few more of them would be nice; finding some of them on random kitchens across the map.
Secondly, using them to toast bread would also be epic, not just being some malfunctioning oven.