112 nine-patch blocks
Currently, I have several sets of 3.5 inch units:
• Half-square triangles from Clue #1
• Plain Squares from Clue #3
• Two-patch units from Clue #4
• Nine-patch units from Clue #6
• Nine-patch units from Clue #7 (this post)
No mention has been made of how these units will be combined into quilt blocks, but I think Sara's prediction that the units will make a Churn Dash block is a good one.