To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
Prismatic Geometric Pattern Background
Source GDJ
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
As the original image 's page size is too large for its image size, I remixed it.
Source Yamachem
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
Prismatic Groovy Concentric Background 3
Source GDJ
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Retro Circles Background 8 No Black
Source GDJ
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
The original enhanced with some gradients.
Source Firkin