A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.
Source V. Hartikainen
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
Gold Triangular Seamless Pattern No Background
Source GDJ
Pattern formed from simple shapes. Black version.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
An alternative colour scheme to the original seamless pattern.
Source Firkin
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso