Here I have tried to create something that would look like maple wood. Not sure how well it's turned out, but at least it looks like wood.
Source V. Hartikainen
Prismatic Abstract Background Design
Source GDJ
Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Old China with a modern twist, take two.
Source Adam Charlts
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-brown.
Source Yamachem
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
A heavy hitter at 400x400px, but lovely still.
Source Breezi
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin