I think it looks kind of pine-y and cute to add some flecks of different color to each stripe. The Duplicate Stitch is a really easy way to do that. If you need some guidance, check out the Duplicate Stitch Tutorial.

To get from stitch to stitch, just push your needle through the sachet and out the place you want to start the next stitch. 

All that's left is a jaunty tassel for the top. So, cut a piece of yarn about 12" long, and thread it down through the top of your sachet and out the side very near the top. Leave a short tail. Go back down through the top and out the side, making sure to leave a little loop.

Keep making loops the same way until you have about five of them.

Then wrap the yarn tightly around all the loops several times. Push the needle from below the wraps, up through the center of the tassel, and out the top.

 Trim the tassel and that's it!