Number five from the same submitter, makes my job easy.
Source Dima Shiper
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Original seamless pattern with an Inkscape filter.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Prismatic Hypnotic Pattern No Background
Source GDJ
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Black And White Floral Pattern Background from PDP.
Source GDJ
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A blue gray fabric-like texture for websites. An yet another fabric-like texture. It has subtle vertical and diagonal stripes to it.
Source V. Hartikainen