The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
Prismatic Triangular Seamless Pattern III With Background
Source GDJ