One of the workshops I took at Mid-Atlantic Quilt Festival (MAQF) this year was called “Interleave”. It was taught by Heather Kojan, though she generously credits Lorrie Cranor with teaching her the technique. Here’s my project from the class, not yet bound.
Now I know how some of those amazing quilts I see on Pinterest are done! And it wasn’t even difficult, though it did require some mental gymnastics to figure out how to set it up.
Heather was a good teacher and I enjoyed learning this. Here are a couple of examples of her work. Please note my photos are wonky, not her quilts!
I’m not sure I’ll ever make another of these, but that’s not the point–I just like trying new things!
Zippy Quilts 
Oh, I’ve made one of these too! In October 2021 took a virtual workshop with Mel Beach to learn how to make one. As you so aptly pointed out, it takes some “mental gymnastics” to work out, but then seems fairly easy. And the point of making interleaves isn’t about making another one, but about learning something new. I’m glad you had the opportunity. Your piece is so pretty. Do you know what you’ll do with it? Finish as a wallhanging? Or turn into a tote?
That interleave piece is currently having a time out but I like it so one of these days it will be something….
I’m guessing the process isn’t as tedious as I am imagining it to be! It does produce a nice result.
Indeed, the process is somewhat tedious but much easier than it looks!