Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
A seamless background texture of old cardboard.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Background formed from the original with an emboss effect.
Source Firkin
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Redrawn based on a drawing in 'По Сѣверо-Западу Россіи' Konstantin Sluchevsky, 1897.
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Background formed from the original with an emboss effect
Source GDJ
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Sharp but soft triangles in light shades of gray.
Source Pixeden
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Geometric triangles seem to be quite hot these days.
Source Pixeden
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin