U.S.-based National Fire Protection Association standard fire diamond for flagging risks posed by hazardous materials. The red diamond has a number 0-4 depending on flammability. The blue diamond has a number 0-4 depending on health hazard. The yellow has a number 0-4 depending on reactivity. the white square has a special notice, e.g OX for oxidizer.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Tile-able Dark Brown Wood Background. Feel free to use it as a background image in your designs or somewhere on the web. By the way, the color seems to be close to Coffee Brown.
Source V. Hartikainen
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Oh yes, it happened! A pattern in full color.
Source Atle Mo
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
Remixed from a drawing in 'Prehistoric Man: researches into the origin of civilisation in the old and the new world', Daniel Wilson, 1876.
Source Firkin
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
A comeback for you: the popular Escheresque, now in black.
Source Patten
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Black And White Floral Pattern Background Inverse
Source GDJ
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
A free background pattern with abstract green tiles.
Source V. Hartikainen
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Prismatic Abstract Geometric Background 4
Source GDJ