Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Sharp pixel pattern, just like the good old days.
Source Paridhi
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
From a drawing in 'Az Osztrák-Magyar Monarchia irásban és képben', 1885.
Source Firkin
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
A free light orange brown wallpaper with vertical stripes designed for use as a tiled background on websites. An yet another background pattern with vertical stripes.
Source V. Hartikainen
Prismatic Groovy Concentric Background 3
Source GDJ
Colorful Floral Background 3 No Black
Source GDJ
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Prismatic Basic Pattern 2 No Background
Source GDJ
A tile-able background for websites with paper-like texture and a grid pattern layered on top of it.
Source V. Hartikainen
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin