Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Prismatic Triangular Background Design Mark II 5
Source GDJ
8 by 8 pixels, and just what the title says.
Source pixilated
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
The image is a design of blue glass.How about using it as background image?
Source Yamachem
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
A seamlessly tile-able grunge background image.
Source V. Hartikainen