I did a lot of fussy cutting when doing the "50 Stars" blocks. I would trace that part of the pattern onto another piece of paper, then using something like a light table (I used a window) I'd put it over the fabric and trace some of the design I wanted onto the paper. Then I'd use that as a template to cut the peices, and to help getting them placed correctly for paper piecing. Most of the time, I had four I needed to match up, and once in a while 8.