Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
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
Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
A repeating background with wood/straw like texture.
Source V. Hartikainen
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Here's a new paper-like background for free use on personal and commercial projects (this applies to all background patterns here).
Source V. Hartikainen
A bit strange this one, but nice at the same time.
Source Diogo Silva
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Almost like little fish shells, or dragon skin.
Source Graphiste
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen