Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
CC0 and seamless wellington boot pattern.
Source SliverKnight
This one is quite simple in design, it consists of vertical stripes layered on top of a seamless texture.
Source V. Hartikainen
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
A seamless background pattern with impressed gray dots.
Source V. Hartikainen
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Light and tiny, just the way you like it.
Source Rohit Arun Rao
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
There are many carbon patterns, but this one is tiny.
Source Designova
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
The image depicts polka dot seamless pattern.
Source Yamachem
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter