From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A background pattern with blue on white vertical stripes.
Source V. Hartikainen
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ