RSC15 March - Monkey Wrench

There are lots of variations on the Monkey Wrench block, which is just another variation of the Shoofly.

This one has slightly modified measurements to make it work nicely in a 6 inch size.    
The corner units are HSTs cut from 3 inch strips.  Place strips of dark yellow and background together and use the easy angle ruler to cut 4 units.
From the same dark yellow, also cut a single 1.5 inch square.
From light yellow cut 4 - 1.5 by 2 inch rectangles.
From background fabric, cut 4 - 1.5 inch squares.

Sew the HST units along the hypotenuse.  Then sew a background square to one end of each light yellow rectangle.  

After the subunits are pieced, it is just another nine patch.  Press away from the triangles and toward the center of the block.  I find that this helps my points come together better.  Your block should be 6.5 inches so far.

Finally, add the star points to your block, using the tutorial posted here.