Not hearing your alarm would be an impossible excuse to make if you owned the Cicadidae Clock. This clock was designed by Jongwoo Choi to wake its owner up anywhere.
How does the Cicadidae Clock manage to wake you up even if you didn't fall asleep in your own room? Simple. It wakes you up by plugging into any device with a headphone jack and speakers and sounding its alarm. The bigger and badder the device, the more likely you are to wake up. This alarm clock is perfect for those of us who are responsible, but sometimes end up sleeping in bedrooms with foreign alarm clocks. You can see conceptual images of the Cicadidae Clock here, as well with a bunch of other innovative alarm clocks guaranteed to have you cursing the morning.