I took a deep breath and gave it a whirl this afternoon when the rest of my family was out, and guess what? I could actually do it!! This is the Echo Shortcut pattern from Leah Day's site (a treasure trove of FMQ designs). It wasn't too difficult, considering that you sort of take a little pause after each arc, so I actually found it quite manageable. I filled a 10" x 8" section which took me what felt like forever, but I feel such a sense of accomplishment.
I will say though, the arcs are pretty close together, I'd say 1/4" each or less, and it creates a very dense finished feel to the fabric. This would not make a very drapey or soft quilt, but the same design done on a larger scale would be perfect.
And I have to ask, does it look like bunches of bananas to anyone else??? ;)