It seems that each country uses different wood for rail sleepers, here in Spain they are from oak. And yes, creosote has been proved to be carcinogenic, specially for those that were working on industries that were treating sleepers, telephone poles and so forth, but so are solvents, certain glues, varnishes, epoxy glues and paints and so forth, and we use them don't we?
I made a garden bench out of a sleeper that I peeled off with an axe, no dust only big chips, rather pleasant smell I must admit ( although I may be a freak), when I finished the bench was still about 3 inches thick of beatiful oak.
Don't get me wrong I'm neither selling the idea nor pushing anybody to do it, but from my experience, faking rough or used/abused furniture, scratches and so forth is not an easy task if you want them to look right. There are other ways to make something look used or rustic.
Best regards,
Toni
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I also dream of a shop with north light where my hands can be busy, my soul rest and my mind wander...