I´ve been reading an interesting post of unconventional photos of the Eiffel Tower. Here´s the link:
From this post, I´ve selected the first one by Prabhu B, on Flickr; the second, by Amorph, on Flickr (from one of the comments); the third by Luc Viatour on Flickr.
See the one from top-bottom shows lots of cigarettes on the right, it seems that people throws things from the top of the tower, specially the smoken cigarettes. Who knows what else could be found.