This is a card I am offering at my next Christmas SAS.
I found the technique on this blog:
Such a cool look!
Stamps: Christmas Classics, Heard From the Heart
Inks: Real Red
Papers: Whisper White, Cocoa Specialty DSP
Accessories: Markers, DSP, Window Sheets
Techniques: Window Card
Difficulty Rating (1-Easy, 5-Hard): 1