The phrase "a collection of tiny" is correct and usable in written English.
It can be used when describing a group or assortment of small items or entities.
Example: "The museum features a collection of tiny sculptures made from recycled materials."
Alternatives: "a group of small" or "an assortment of miniature".
It is a collection of tiny stories inspired by junk-store purchases.
On this view, property is like a collection of tiny contracts.
As the geisha establishments began closing, a collection of tiny gay bars took their place.
Smith threaded his boat through the Thimbles, a collection of tiny private islands, some big enough for only a single house.
A raster graphic is made up of a collection of tiny, uniformly sized pixels, which are arranged in a two-dimensional grid made up of columns and rows.
Rosi's film is a collection of tiny details that morph, almost by osmosis, into a shocking excavation of the mechanics of crisis.
In a small alleyway on 49th St, just off Telegraph Avenue in the Temescal neighbourhood of Oakland, this hip locale is a collection of several tiny shops in converted Victorian stable block.
Assuming the "sweeping" process of accretion was reasonably efficient throughout the primitive disk, we can appreciate how our present Solar System came to exist as a collection of rather tiny, well-separated planets wheeling around a huge sunny sphere in an otherwise empty region of space.
To develop the camera's hardware that collects the image data, the Rice team turned to Texas Instruments' digital micromirror technology, which uses a collection of thousands of tiny mirrors that can be angled in two different directions.
Think of one of those mosaic tricks in which, when seen up close, a portrait of the Mona Lisa turns out to be a collection of hundreds of tiny portraits arranged to replicate the colors and patterns of Leonardo da Vinci's famous painting and you'll get a sense of the breadth and depth of the tangled web Churchill has woven.
A motorized collection of tiny cars and shrimp-shaped toys moves in circles where her body had been.
