Pipe bomb
Materials: ABS or PVC pipe (threaded) with 2 end plugs
              Matchheads or BP (NOT FLASH!)
              drill
              fuse
              hammer
Construction: First take a end plug and super glue it into the pipe then stuff about a inch and a half of TP down the pipe. Drill a hole in the midle and put your fuse in and seal the tip. Take the matchheads and fill it up 3/4 of the way. Put more TP in and super glue the other end on tight.
Notes: Whatch out for shrapnel from the pipe. This device is very powerful, I have never made one. This is a favrioute to terrorist and if someone saw you with it the would certianly call the cops so I advise you do not attempt to make one.