here are some I did - this one I made "presents" and then sashed them so they'd be in increments of 3" (plus seam allowance) and then added some smaller blocks to get it all together.
I really love the ribbon quilt to highlight Christmas fabric
And this one was a fun way to use up a bunch of Charm squares
I have seen a pattern that used presents arranged to form a tree like the ornaments. I liked it so much that is what got me to start collecting Christmas fabrics. I just got over enthusiastic in collecting and ended up with way more than I needed. I'll be making more Christmas quilts come next winter.