One type of pyrotechnic device that might be employed by a terrorist in many way would be a smoke bomb.

A very good informational file on how to produce different smoke bombs.

Instructions ofr making a huge range of different colored smokes and smoke bombs.

here are the plans to “make the classic - when lighted smoke will pour from the container to form “a thick cloud of smoke.

How to make black, white, yello, res and green smoke screens.

How ot make a huge range of different smoke color powders for your fireworks.

The smoke grenade, unlike the smoke bomb, will produce an instantanious cloud of smoke

An interestiong aspect of explosives is the extra ingredients which can be “added to give the explosion characteristics it would not normally have. A smoke “bomb is like this, in sense that it is not only useful to create confusion and “chaos, but also for smoking persons out of an enclosed area, as well as “signaling.

A rather complicated improvised smoke grenade.

HOW TO MAKE FLASH POWDER INTO A SOLID FOR SMOKE BOMBS
Take flash powder and moisten SLIGHTLY to form a really thick paste.
Embed a fuse in it before it drys. you should put this in a container that will not melt and
has a small opening [...]

One pound of this “stuff will fill up a whole block with thick, white smoke

~ How to make a smoke bomb out of a tennis ball ~
Materials:
-One tennis ball -Alot of strike anywhere matches
-something to punch a small hole
All you have to do is fill the tennisball with
the strike anywhere matches after making the small hole on top. Then throw! This [...]