Wow! I am in awe of quilters who make Grandmother's Flower Garden quilts - they are amazing, one of my favorites - but not going on my 'bucket list' to make :-)
Another thing I haven't tried - don't know if it will work - etc, etc: I have kept some of those flexible clear plastic boxes like ornaments or corsages come in - thought they might be easy enough to cut to make long lasting templates - anyone tried?