Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Colorful Floral Background 3 No Black
Source GDJ
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
From a drawing in 'A Guide to the Guildhall of the City of London', John Baddeley, 1898.
Source Firkin
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
U.S.-based National Fire Protection Association standard fire diamond for flagging risks posed by hazardous materials. The red diamond has a number 0-4 depending on flammability. The blue diamond has a number 0-4 depending on health hazard. The yellow has a number 0-4 depending on reactivity. the white square has a special notice, e.g OX for oxidizer.
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
Prismatic Polka Dots Mark II No Background
Source GDJ
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Prismatic Abstract Line Art Pattern Background
Source GDJ
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Prismatic Curved Diamond Pattern No Background
Source GDJ
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin