Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Almost like little fish shells, or dragon skin.
Source Graphiste
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
Prismatic Hexagonalism Pattern No Background
Source GDJ
A nice and simple white rotated tile pattern.
Source Another One
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
The image is the remix of "wire-mesh fence seamless pattern" .This is a more minute version of it.Sorry for the file size.Using path>difference in Inkscape, I will cut out any silhouette from this pattern and create a "meshed silhouette".
Source Yamachem
Continuing the geometric trend, here is one more.
Source Mike Warner
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin