I'm very proud to finally show this icon. It was created for a Mac app named Mocks that helps create iOS mockups.
I've included a nice little process walkthrough I made, as well as the usual display of all the hinted sizes [16px one is reallly cute :3].
Plus, there's some snazzy clay renders of the 3D model I used to map the fabric texture attached.
And If you want even more detailed process pics, I've made an imgur gallery explaining each step of the final illustration.
As I said, I'm really happy with how this project turned out [though if you have any feedback, do share!]. I'd love to answer any questions you have about the icon creation process.