Here's a repeatable texture that resembles a light green concrete wall or something similar.
Source V. Hartikainen
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
A background pattern with a look of rough fabric.
Source V. Hartikainen
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
This metal background pattern resembles a metal plate with rivets. Solid rivets on a metal plate.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The image depicts polka dot seamless pattern.
Source Yamachem
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin