The image depicts a seamless pattern which was made using stripe-like things including borders.I used OCAL cliparts called "Blue Greek Key With Lines Border" uploaded by "GR8DAN" and "daisy border" uploaded by "johnny_automatic".Thanks.
Source Yamachem
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Prismatic Groovy Concentric Background 4
Source GDJ
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Seamless Olive Green Web Background Image
Source V. Hartikainen
This is a more minute version of "fishnet 01".The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
Prismatic Groovy Concentric Background No Black
Source GDJ
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso