Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Retro Circles Background 7 No Black
Source GDJ
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
One more sharp little tile for you. Subtle circles this time.
Source Blunia
From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin