A cute x, if you need that sort of thing.
Source Juan Scrocchi
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Prismatic Abstract Geometric Background 2
Source GDJ
Used a cherry by doctormo to make this seamless pattern
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Prismatic Snowflakes Pattern No Background
Source GDJ
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin