BLOCK OF THE MONTH (BOM):
You have the option of creating the specific BOM featured for each month or submitting a similar looking block that is created more within your skill level or finishes at your preferred size.
January:
Aztec Jewel (first picture) - nominated by @MistressJennie
The More Adventurous Aztec Jewel (picture 2)
February:
David & Goliath Quilt Block - nominated by @EclecticDreamer
David & Goliath Block with corner arrows
March:
Hunter’s Star Block - Template or paper piecing variation - nominated by @jellybean
HST Hunter’s Star Block - This link does not provide instructions on how to make the block, but it does have photos of the block created with 16 HSTs
April:
Mosaic Block - nominated by @Edel
May:
Adori Quilt Block (first pic) - nominated by AudiobookLover - This link will take you to a tutorial that uses subcuts to reduce the amount of work needed to create this block.
Stone Mason’s Puzzle Block (second pic) - This version uses templates
Serendipity - This version stitches strips of fabric to a foundation paper
SVG pattern - This paid version provides an SVG cut file to cut the fabric with a cutting machine.
June:
or 
Flying/Circling Swallows Block - nominated by @magpie - rotary cut version
Flying Swallows - template version
The images above are references on how this block can look. Each image is linked to the page it came from.
July:
Yankee Puzzle Block - nominated by @marionberries - 2 at a time HST method + video tutorial
Yankee Puzzle - 4 at a time HST method
August:
Dutch Treat Block - nominated by @AIMR
54 versions of this block - scroll a little ways down on this page to see the block done in 54 different color variations