Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Prismatic Geometric Pattern Background
Source GDJ
An alternative colour scheme to the original seamless pattern.
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Remixed from an image that was uploaded to Pixabay by CatherineClennan
Source Firkin
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
A seamlessly tileable pink background texture.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ