Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
Colorful Floral Background No Black
Source GDJ
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Sharp pixel pattern, just like the good old days.
Source Paridhi
A bit of scratched up grayness. Always good.
Source Dmitry
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Psychedelic Geometric Background No Black
Source GDJ
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Prismatic Geometric Pattern Background No Black
Source GDJ
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan