Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Element of beach pattern with background.
Source Rones
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
A new one called white wall, not by me this time.
Source Yuji Honzawa
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Remixed from a drawing in 'Some account of the Worshipful Company of Ironmongers', John Nicholl, 1866.
Source Firkin
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Prismatic Abstract Background Design No Black
Source GDJ
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A cute x, if you need that sort of thing.
Source Juan Scrocchi
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin