From a drawing in 'Jardyne's Wife', Charles Wills, 1891.
Source Firkin
Remixed from a drawing in 'Some account of the Worshipful Company of Ironmongers', John Nicholl, 1866.
Source Firkin
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Prismatic Curved Diamond Pattern 3 No Background
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
Tiny circle waves, almost like the ocean.
Source Sagive
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless web texture of "green stone".
Source V. Hartikainen
Here's an yet another seamless note paper texture for use as a background on websites.
Source V. Hartikainen
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
A nice and simple white rotated tile pattern.
Source Another One
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
A light brushed aluminum pattern for your pleasure.
Source Tim Ward