Mark Tanner says:
This Hand Grenade alarm clock is a fun way of waking up in the morning. To turnoff the alarm, you will have to throw it at a wall or an object (not your cat). What will the Japanese think of next ?
The clock which uses motion sensing technology, is made of soft pvc, which provides a little bit of safety. It is also available in baseball and soccer ball models.
Link (Thanks, Mark Tanner)