Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
This one is amazing, truly original. Go use it!
Source Viahorizon
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. A version of the original with random colors.
Source Firkin
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Almost like little fish shells, or dragon skin.
Source Graphiste
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Used the 6th circle pattern designed by Viscious-Speed to create a print that can be used for card making or scrapbooking. Save as a PDF file for the best printing option.
Source Lovinglf
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida