Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
A bit strange this one, but nice at the same time.
Source Diogo Silva
Prismatic Abstract Background Design
Source GDJ
This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
It looks very nice I think.
Source V. Hartikainen
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen