The world's largest alarm clock is actually the sun, but I'll look past that for the sake of this scary bitch, who's convinced he's made the largest. Now I don't want to ruin the video for you, but there is absolutely no way he originally designed that as an alarm.

The World's Biggest Alarm Clock [geekygadgets]

Thanks to MaverickPS, who wakes up the way God intended: with a dog licking his face.