I had a Ladybird book of magic tricks
One of them was how to make your fingers give off smoke when you rubbed them together, and as I recall you had to soak the striker off some "safety" matches in water, collect some substance that resulted, let it dry and then add it to your fingers before you wanted to do the trick. To be fair it did note that the resulting substance is highly toxic, but it still told children how to manufacture it at home :/
( emvee cruor deo cruoris, Fri 10 Aug 2012, 8:29, Reply)