I marked on the inside where I wanted my score lines, then used my SU Fiskars paper trimmer to help me score on the inside with my bone folder. Kind of time consuming with getting it in the right place, but I love the look!
Stamps: Of the Earth, Great Friend
Inks: Soft Suede Classic, Whisper White Craft
Papers: Kraft card stock
Accessories: Stamp-a-ma-jig, Signo white gen pen, paper trimmer, bone folder