Oi m8 here's some instructions on a real bomb I copied from a book since you're deprived of the knowledge:
(Thank god I type 75WPM)
Pipe bombs, whether filled with match heads, gunpowder, or high explosives, should be lined with plastig baggies or freezer bags. This prevents friction, static electicity, and any chemical reaction between the explosive and the metal.
the mouth of the bag is folded back over the threads and the explosive is put in. Next, the fuse is put in and the plastic bag is wrapped tightly around the fuse and held with a rubber band. All this is necessary because any explosive on the pipe threads could cause the bomb to explode when the cap is screwed on. It is also good to wrap heavy steel wire around such bombs. The wire created just enough resistance to the explosion to cause the pipe to shatter into many fragments. Otherwise, the bomb will only break into 3 or 4 pieces.
The cap for the fuse hole is drilled from both sides with any high-speed steel industrial twist drill bit. The bit is used with any electric hand or table drill. The side of the hole should be exactly the size of the fuse. The plastic bag should cover only the lower part of the fuse. Flare igniter, if used, should be put on the fuse after the cap is screwed on as the hole would have to be made larger than necessary to accomodate the glob of flare igniter.