This could be a hippy vintage wallpaper.
Source Tileable Patterns
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Tiny circle waves, almost like the ocean.
Source Sagive
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
Alternative colour scheme for the original floral pattern.
Source Firkin
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
Prismatic Abstract Background Design No Black
Source GDJ
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
White handmade paper pattern with small bumps.
Source Marquis
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Plywood Web Background background image for use in web design.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Number five from the same submitter, makes my job easy.
Source Dima Shiper
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo