Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
A repeating background of beige (or is it more vanilla yellow) textured stripes. One more background with stripes.
Source V. Hartikainen
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
A bit strange this one, but nice at the same time.
Source Diogo Silva
Black And White Floral Pattern Background from PDP.
Source GDJ
It’s big, it’s gradient—and it’s square.
Source Brankic1979
A seamless background tile of aged paper with shabby look.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Looks like an old rug or a computer chip.
Source Patutin Sergey
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
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
A pattern derived from repeating unit cells each derived from part of a mosaic in paint.net. The starting point for the mosaic was a picture of some prawns!
Source Firkin
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin