Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
Psychedelic Geometric Background No Black
Source GDJ
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
A comeback for you: the popular Escheresque, now in black.
Source Patten
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO