Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
A floral background formed from numerous clones of flower 117.
Source Firkin
Prismatic Abstract Background Design No Black
Source GDJ
A seamlessly tile-able grunge background image.
Source V. Hartikainen
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Remixed from a vector adapted from a jpg on Pixabay. The tile this is constructed from can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
A seamless stone-like background for blogs or any other type of websites.
Source V. Hartikainen
Remixed from a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
The image depicts a seamless pattern which includes hexagonally-aligned gourds with BG in light-brown.
Source Yamachem
Prismatic Triangular Background Design Mark II 5
Source GDJ
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim