Dynamiteclock

10 minute and you have a bomb clock...hehe....inoffensive,of course.....

a old table clock,some elastic,electric wire,a old part of electronic, letter paper,old publicity brochure,a pvc tube,
electrical tape or similar,black.........

preparing 6 tube,rolling the brochure in to de letter paper.....
six on external position and the pvc tube in the middle......
use the electrical tape to united alls....
fix the clock and the electronic parts with a elastic....
join some wire.......

dont forget to put inside the clock a battery.......tomorrow you must be working...or boummmmmm....he he he