Sorry I'm a few days late. We've had company.
For this month, I'm thinking PINE. You can use the image, or the color, however the word inspires you ... or wouldn't scratch and sniff be fun?!
Please post to the "Christmas Cards All Year 2018" album in the gallery and share a link here in the forum. Thanks for playing along! I look forward to seeing your cards, whether you use the prompt or not.