From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
A background pattern with wavy green vertical stripes. This one has green stripes on a white background. Download if you like it.
Source V. Hartikainen
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
A cute x, if you need that sort of thing.
Source Juan Scrocchi
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Here's a tile-able wood background image for use in web design.
Source V. Hartikainen
Background formed from the original with an emboss effect.
Source Firkin
You guessed it – looks a bit like cloth.
Source Peax Webdesign
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis