i know what they are!
they used to be labelled as candy cigarettes, and have a little bit of red colouring on one end, and a little collectable card inside- but somewhere along the line i'm assuming somebody thought maybe that it wasn't such a great plan to call them that any more.
me and my little bro used to faux-smoke/chew on them whenever we had pocket money, in the 80's, much to my mums distain.
i have no idea whats in them though. i'll go root about on the 'net.