Here's a card I did using the Mortise (reverse) Masking technique.
First - I made a mask by die cutting out a piece of cardstock using Spellbinders Labels 8 set. Next - I put the mask over the card base and stamped the Mesh Background. Then - leaving the mask in place, I used a Sponge Dauber and inked around the edges to darken it up a bit.
I used A Muse Studio NEW French Roast Flocking on the pumpkin stems and the NEW Wasabi Ink on the background.
Stamps: A Muse Studio - Harvest Blessings, Mesh Background, Happy Jacks
Paper: A Muse Studio Kraft
Ink: A Muse Studio Evergreen, Pumpkin, Nutmeg, Buttercup, Wasabi; Tsukineko Versafine Onyx Black
Accessories: Spellbinders Labels 8, Big Shot Die Cut Machine, A Muse Studio French Roast Twine, A Muse Studio French Roast Flocking, Sponge Daubers, Quickie Glue Pen, 3D Foam Adhesive