This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Same classic 45-degree pattern, dark version.
Source Luke McDonald
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
This background image is great for using in web design or graphic design projects. And don't forget to visit the homepage. I frequently update this resource with fresh tileable backgrounds.
Source V. Hartikainen
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
A nice and simple white rotated tile pattern.
Source Another One
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Alternative colour scheme to the original.
Source Firkin
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
A seamless pattern of leopard skin. It should look nice as a background element on web pages.
Source V. Hartikainen
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Fake or not, it’s quite luxurious.
Source Factorio.us Collective