This is sort of fresh, but still feels a bit old school.
Source Martuchox
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
Remixed from a design seen on Pixabay. The basic tile 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
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Subtle scratches on a light gray background.
Source Andrey Ovcharov
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Might not be super subtle, but quite original in its form.
Source Alex Smith