This is a seamless pattern which is derived from a flower petal image.
Source Yamachem
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
An alternative colour scheme for the original background.
Source Firkin
A black tile-able background with paper-like texture.
Source V. Hartikainen
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Used a cherry by doctormo to make this seamless pattern
Source Firkin
This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev