One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
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
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
A seamless pattern of leopard skin. It should look nice as a background element on web pages.
Source V. Hartikainen
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin