This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Prismatic Abstract Geometric Background 2
Source GDJ
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Number five from the same submitter, makes my job easy.
Source Dima Shiper
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Prismatic Abstract Line Art Pattern Background
Source GDJ
From a drawing in 'Picturesque New Guinea', J Lindt, 1887.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin