Thunder snaps were fun. Quite harmless but made people jump. My mum god bless her used to smoke roll ups.I made her one once with a bit of thunder snap half way down. Oh how we laughed at A&E ? No it just made her jump(a lot) lol. But I used to have some laughs with them and no one ever got hurt.?
Are you talking about the granules wrapped up in a paper twist that were thrown on the ground and,well,snapped?
Yeah just googled them. Not the same thing. They are still available in store only. £5 for a box of 15.