Thanks, Peggi.
I make circles that way using freezer paper. I don't have any heat-resistant plastic. I've just not made any circles that tiny. I'll let you know how it goes.
I've only copied 1 block so far so it's not like I have all 40 done and need to redo them all. But, I'll have to redo about 50 little pieces..... feeling a little frustrated, I guess. I've been planning on making this for such a long time. Once I actually start sewing, I think I'll be fine. ...... I'll stop whining now.