I do on the back of my husbands bike, LOVE THAT!!!
To the OP, NO ASHES!!! I love that! And not having to worry about ashtrays! Oh and not having to worry about lighters!
Oh I almost forgot about those nasty blisters you get when your bic gives up the ghost and only lights after 20 or 30 flicks. Then you forget about it until the next time you go to flick it and 8-o