To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
The original enhanced with some gradients.
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
This one is amazing, truly original. Go use it!
Source Viahorizon
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Prismatic Abstract Background Design
Source GDJ
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
From a drawing in 'Royal Ramsgate', James Simson, 1897.
Source Firkin
Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin