Background pattern originally a PNG drawn in Paint.net
Source Firkin
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
It’s big, it’s gradient—and it’s square.
Source Brankic1979
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Colour version of the original pattern.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Looks like an old wall. I guess that’s it then?
Source Viahorizon
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin