I designed the block I call Foam Lake by using squares and half-square triangles to make two different units. Two of each unit combine to make the block.
Because it was designed using squares and half-squares triangles doesn't mean it has to be sewn that way. The design can be simplified. Rectangles with flip and snip triangles in the corners can replace some square and half-square triangle combinations.
Foam Lake is designed to be a scrappy quilt with definite light and dark areas on a white background.
I want to try various combinations of the block in two different color ways.
What if I simply repeat the block?
What if I rotate the block?
What if I combine a block with its mirror image?
What if I use mirror image blocks to make a larger block and then rotate that larger block?
What if I rotate and offset pairs of mirror image blocks to form a frame?
More is possible. But that's enough for one day.