- a tube, for example like this one :
- about 5 balls (tube for 20 tablets, there are smaller ones too where you'll need only 3 but bigger=better)
1. Cut balls into shreds 30mm x 4mm
2. Cut off that spiral under cap and make hole in the cap (you'll need to tip powder from cap)
3. Put ping pong shred into tube, shreds should be 0,5 inch lower than cap.
4. Light shreds and wait few seconds until it will burn like flare
5. Bung tube with cap (the hole in it is very importat- without that pressure will be to high and whole tube can explode)
It won't make smoke like professional smoke grenades but remeber, you are doing it for fun, not for combat purposes!
Unfortunately i don't have good film with effects, but i ensure- it's worth 10 minutes of work.