Pat Saft from Quilt Guild was working on one of these at Quilt Camp a while back, and brought the finished quilt to guild not long after. I was intrigued, and wanted to try it myself ...
There are several tutorials out there showing how to make this block. Some of them are kind of futsy with lots of little pieces to keep track of. I found this one by Susie's Scraps that made it easier in my mind -- not so many little pieces. I can deal with the diagonal seams and cuts. With this method, you get 2 blocks out of 2 10-inch squares.
Here is the block, complete with arrows shooting out of the corners, before it's trimmed.
Here is the tidy and trimmed block.
These are very satisfying to make. I have 36 blocks done so far ... Not sure how many more I'll need to fill out a quilt top ... I may need to get more of the black background fabric.

