Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
Element of beach pattern with background.
Source Rones
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868.
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers