And secondly I absolutely hate the things, they make me jump a mile when someone throws one anywhere near me. If you snap more than one at a time, you obviously increase the heat and the sound, so be careful what you do with them. But when she threw a handful into her mouth at home and bit down she realised they weren't treats - and were actually small novelty fireworks sold as trick noisemakers.

Fun Snaps are incredibly simple; they consist of a coarse material such as gravel or sand, with a small amount of explosive, wrapped in a thin paper.Whilst you will get in serious trouble for taking them on a plane, it is highly unlikely you will ever get in trouble elsewhere. Bang snaps consist of a small amount of gravel or coarse sand impregnated with a minute quantity (~0. My 6 year old went to a party at a Playgym not long ago and he said he was going to give his big sister some of the " sweets" out of his party bag. They exploded in her mouth and she was in instant agony, and left with chemical burns on her lips and gums, she said.

She claims the in-mouth explosions also cracked a tooth, and she was prescribed strong painkillers to combat the soreness.Immediately spitting out the tiny fireworks, she swilled her mouth out with water to numb the burning pain - and when she checked the label on the box, she was shocked to realise what had happened, she said. The friction-sensitive chemical detonates when stepped on or thrown on a hard surface, making a small bang. The explosion is unable to propel the gravel any distance, which usually falls to the ground, making them safe for use as a children's toy, for which purpose they have been widely sold around the world since the 1950s.