A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen