Uh, sure? Here’s the very old ones I remember reading first.
This is a fantastic old story, esp. the first two chapters. http://www.mcstories.com/CigarMonitor/index.html
One of my all time faves, by Peircedskin: http://www.mcstories.com/OneMansRubbish/index.html
A very strange blue collar TF, based on a Bradbury story: http://web.archive.org/web/20050212114640/http://www.maelstromx.com/trans/stories/story28.html
Some more smoke bears: http://web.archive.org/web/20050212114107/http://www.maelstromx.com/trans/stories/story37.html
Also peircedskin: http://web.archive.org/web/20050213113134/http://www.maelstromx.com/trans/stories/story62.html
Another bear TF I fell in love with: http://web.archive.org/web/20050212114444/http://www.maelstromx.com/trans/stories/story33.html
Prison bear TF: http://web.archive.org/web/20050213112926/http://www.maelstromx.com/trans/stories/story68.html
And please, if you haven’t already, go read Onix’s whole catalogue? http://onixstories.blogspot.com/?zx=db12a660d78f52ab
EDIT:
Shoot, I forgot one important one, one of my all time faves: http://www.eroticgayhypnosis.com/ncmc/stories/story00074.html