Attach to card with foam tape
Tree clip art: I used a downloaded tree image and made the following changes: recolored the green to match the card, added dotted lines as a border, added digital red "chalk" along the lines, drew over the lines with a red marker once it was printed.
I couldn't find paper in the shade I wanted, so I created digital paper and used a "blinds" brush to draw the textured lines.
Copied from a card (with some changes made) by Kathleen Paneitz in PaperCrafts Joy of Card Making magazine