From a drawing of the coat of arms of the Ottoman Empire on Wikimedia.
Source Firkin
Prismatic Curved Diamond Pattern No Background
Source GDJ
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Prismatic Polka Dots Mark II No Background
Source GDJ
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Gold Triangular Seamless Pattern No Background
Source GDJ
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin