Prismatic Groovy Concentric Background 3 No Black
Source GDJ
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Spice up your next school project with this icon background.
Source Swetha
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Classic 45-degree pattern, light version.
Source Luke McDonald
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
This background has abstract texture with some similarities to wood.
Source V. Hartikainen