Well, I just had to try this out for myself. I found a nice, yet teeny-tiny silk skirt with a polyester crepe lining at the local Goodwill, and took it apart. This is a picture of The Boiling Of The Fabric! Marbles were secured at regular intervals with small rubber bands. Boiled for about 20 minutes.
Then it was hung up to dry for about a day. After removing all the rubber bands and marbles this is how it looks:
This is what the whole piece looks like when it is hung up. Pretty interesting texture was achieved.
And this is the remains of the silk skirt which was deconstructed that I'll now incorporate into a piece with the manipulated skirt lining.
Some close ups of the interesting surface created by this technique.
I'm looking forward working with this flexible and strange fabric, making an attempt to corral it into a more 2-D shape. It will be challenging I'm sure. One thought I've had is instead of stitching in and around the shapes by machine I'll tack it down by hand by stitching on beads in and around the "grape shapes".