This one was a fun one and I think it turned out amazingly!
This particular project is a gift box.
I used cut files from the Silhouette Store for both the chimney box and the 3-D Santa. The box is called "3d chimney box" and is by Snapdragon Snippets (#51814). The Santa is called "3d Santa" and is also by Snapdragon Snippets (#51040). The box is about 3 1/2" square in length and width. It can hold a gift card, standing upright. The Santa was cut without changing any settings when I opened it up on my virtual mat. It fits in the chimney perfectly. The tag is a pre-made one I had in my stash. I stamped it with "to" and "from" stamps by My Craft Spot, the "Merry Christmas" set. I tied some baker's twine in a bow and attached it to the tag, then attached it all to the box.
This is how the lid of the chimney comes off.