This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Otis Ray Redding was an American soul singer-songwriter, record producer, arranger, and talent scout. So you know.
Source Thomas Myrman
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
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
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Prismatic Floral Background No Black
Source GDJ
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Remixed from a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
CC0 and seamless wellington boot pattern.
Source SliverKnight
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Remixed from a drawing in 'An Index to Deering's Nottinghamia Vetus et Nova', Rupert Chicken, 1899. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective