This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861
Source Firkin
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
A free seamless background with pink spots.
Source V. Hartikainen
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Zero CC plastic pattern texture, photographed and made by me. CC0 *Note, this texture was on the perfectly smooth surface of a plastic shovel scraper, not sure how to call it. Plz coment if you know what its called.
Source Sojan Janso
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Subtle scratches on a light gray background.
Source Andrey Ovcharov