The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保3年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
Same classic 45-degree pattern, dark version.
Source Luke McDonald
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
CC0 and seamless wellington boot pattern.
Source SliverKnight
An aged paper background tile with smeared and pressed text.
Source V. Hartikainen
Classic 45-degree pattern, light version.
Source Luke McDonald
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
A tile-able background for websites with paper-like texture and a grid pattern layered on top of it.
Source V. Hartikainen
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
A chequerboard pattern with a fruit theme. The fruits are from a posting by inkscapeforum.it.
Source Firkin