hey lahad!
yeah, i checked ebay.
you unscrew the cap and put a joint in the metal holder; light it up, screw it in and enjoy!
you could smoke it down to nothing..perfect to drive around with.
no smoke or ashes..was the ultimate party accessory in 1977, when i got my license and 1st car ('66 chevy biscayne $200 that leaked oil and had to be replaced every week)..ah! the memories.
i had the blue version.
i saw a post by oat willies; they are STILL getting calls to this day for it..unfortunately, they can't find a manufacturer it (or so they say).