Wheel textures

I'm trying my hand at building steam punk items. What I can't seem to find are suitable textures of metal wheels that I can apply to circular prims. The sort u see on traction engines and stationary steam engines. Does anyone know if these available anywhere in world or on the web. I have hunted and hunted using Google but no real success.

Flaran

Do you mean like
http://www.flickr.com/photos/86624586@N00/12032239/

Found via a flickr indexer
http://compfight.com/
with the query: iron wheel

expect a fair amount of work extracting the textures and be sure to follow the license terms of
http://creativecommons.org/licenses/by/2.0/deed.en

Thank you Malachi)