A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
Here's a tile-able wood background image for use in web design.
Source V. Hartikainen
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
A seamless background texture of old cardboard.
Source V. Hartikainen
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo