Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
The classic notebook paper with horizontal stripes.
Source Are Sundnes
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Fix and cc0 to get the tile this is based on.
Source SliverKnight
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman