Soon after I joined Quilting Board I saw this tutorial and put Boston Star on my bucket list. I have yet to make one, but I'm still thinking I will. I thought I'd take a minute to write a comment in the hope of making it a little more likely that newbies will notice this and be inspired.
What brought it to mind was finding this block among the ones being offered on OESD for embroidery machines. Yay, now I don't even have to be able to sew straight. They call it "Split Quarter Square Triangle" and offer two sizes. They have other blocks as well, such as flying goose and hst. These are stitch and flip quilt blocks and can be done with scraps exactly as Rhonda shows, but in the hoop. Aside from having to deal with tearaway stabilizer, they provide an easy way to get perfect accuracy. I'm not suggesting that anyone should buy an embroidery machine just for this purpose, however. That's not an economical or even necessarily easy way to sew quilts, but if you already have one this is another good use for it. BTW, I'm not necessarily promoting OESD. Other embroidery sites, such as Ann the Gran offer similar blocks.
Rhonda's tutorial is worthwhile for other types of blocks. The concept of sewing scraps together and then trimming the seams and cutting the square is a lot like foundation paper piecing, but without the paper. Thanks, Rhonda!