i have a black and white poster of that scene hanging in my old room in my parents house. when i first moved out, i took it with me. eventually it ended up back there. in my first apartment, i cut out pictures from magazines and made collages all over all the walls. they werent entirely covered, but there is only so much one man can do on his own without making it his life haha....i had three floors to work with, after all. in taping up pictures everywhere, i found a really cool mushroom cloud from a volcano...the type that explodes with tons of ash and cinder and such, not the type that oozes out hot lava. so i cut that out, and taped it sideways onto the back of one of the motorcycles. i also made a tiny, itty bitty little handrolled cigarette, with tobacco in it, and gave peter fonda a little joint to smoke while riding. i think i might have been on mushrooms at the time, or at least very high. either one is plausible. the poster is still in my old room. the cloud is still there, and last i checked so is the miniature cigarette "joint"