This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that 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
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
A nice and simple white rotated tile pattern.
Source Another One
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen