How to make a Pen Smoke Flare

How to make the pull string detonator

This is a video on how to make a spy smoke flare pen. Inside this ordinary looking pen, is a powerful smoke bomb that is capable of filling an area or room with smoke. It is activated by pulling the cap off. The detonator is made out of a party popper and flash cotton. The smoke bomb its self is made out of sugar and potassium nitrate, (KNO3). When lit this compound burns violently and puts out a lot of smoke. This is definitely something that James Bond would carry. If you like this video, check out some of my others at