I google imaged clip art pine trees until I found a nice full one to print on heavy weight paper for this craft. This is a neat little craft: it’s quick, creative, and doesn’t make a mess. Also, I think it’s nice enough to supplement a-not-so-expensive gift, but that might be a matter of taste.
If you would like to try this craft yourself, I recommend punching holes in the paper with a needle before actually sewing the thread through. Lay the paper on top of corrugated cardboard and stick with the needle for your needed design, like you are setting up a connect the dots. This will make it easier not to accidentally bend the paper while you are forcing the threaded needle through the heavy weight paper.