A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
CC0 and seamless wellington boot pattern.
Source SliverKnight
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
The base gradient edited so now more details are rendered.
Source Lazur URH