Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
A black tile-able background with paper-like texture.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
There are many carbon patterns, but this one is tiny.
Source Designova
Retro Circles Background 7 No Black
Source GDJ
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
Lovely pattern with some good-looking non-random noise lines.
Source Zucx