I remember that episode. It still might be archived on the HGTV web site. I think she used a layer as a foundation, then arranged her tiny scraps (which she ran her rotary cutter over a zillion times), then sewed the tulle on. It made quite an interesting wall hanging, but I don't know if I would ever attempt it!
Just a minute - I'm going to go check HGTV (don't tell Alex...)
OK, I'm back. The website is hgtv.com. The video is available. Here's the info:
Confetti Naturescapes
Noriko Endo recycles leftover scrap fabric into this gorgeous Confetti Naturescapes quilt.
Shown on: Simply Quilts QLT-1128
I feel like such a sleuth! Hope this helps.
Linda in Wisconsin, enjoying beautiful weather and family visiting