From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
The image depicts a seamless pattern which includes hexagonally-aligned gourds with BG in light-brown.
Source Yamachem
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0
Source Sojan Janso
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
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
The image is a seamless pattern of a fishnet.
Source Yamachem
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc