Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 3
Source GDJ
8 by 8 pixels, and just what the title says.
Source pixilated
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
From an image on opengameart.org shared by rubberduck.
Source Firkin
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Seamless Prismatic Geometric Pattern With Background
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin