] Over the years our world famous "Dynamite Clock" has
] repeatedly made the news due to it's super-realistic
] appearance. Designed by a REAL demolitions expert, each
] unique piece is and hand assembled one-at-a-time. Each of
] these works of art will instantly command anyone's
] attention. Talk about a conversation piece... Each clock
] features multiple sticks of dynamite (simulated), and
] realistic explosives wrapping paper. We then attach a
] hi-quality digital clock, motion sensor (mercury switch),
] circuit board with functional L.E.D. lights, a speaker,
] battery power supply, and top it off with a de-activated
] detanator pin. Once the battery has been connected the
] unit will be "set-off" if it is moved, jostled, or picked
] up in any way. The red L.E.D. lights blink, the buzzer
] sounds, and the poor fool who moved it will need a change
] of underwear!

There are all kinds of entertaining gadgets on this site...

Realistic dynamite clock