Is there any place on the forums where I can request a texture?

I have a head texture in mind that I would like made and am willing to pay a good sum of TC for it however I'm not quite sure where (or even if) I can request it.

Also I have an image of a head texture I really like that I found one day and I'd like to post it and ask if someone could make something similar.

However I'm not sure if that counts as plagiarism, I also do not know the identity of who made the texture originally.

Any help would be greatly appreciated.
Thanks.

- Your friendly neighbourhood tori, Rainbowz.