Winters Heart is a lovely project for winter or Christmas incorporating snowflakes, hearts, trees and twinkles, and is created using the overlay mosaic technique.
The PDF has 9 easy-to-read charts for each pattern included, and corresponding written instructions.
Two PDFs are available - one using UK terms and one using US terms.
You can use any yarn and corresponding hook you like for this pattern, just remember a tighter tension is better for mosaic crochet.
You can of course create any size you want as it’s a simple repeating pattern and just pick and choose the patterns included.
Photos courtesy of Cindy Kondalski, Merry Gano and Jenny the cat.