Here’s an interesting fact pattern. Who is the source of the jewelry pictured above? This jeweler. Jewelry companies purchase luxury clothes and ‘re-purpose’ the buttons (bearing the logo) into jewelry, and sell them on sites like this one. Val Colbert has brought a DJ action against Chanel.
Here is a post from Prof Goldman’s blog on the First Sale doctrine with several useful links.
The button designs might be copyrightable, too. If you’re so inclined, you can begin your reading with Lee v A.R.T.