The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
This one is amazing, truly original. Go use it!
Source Viahorizon
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
A seamlessly tileable pink background texture.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Prismatic Floral Background No Black
Source GDJ
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Prismatic Geometric Pattern Background No Black
Source GDJ
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo