I made some earlier this year from cones from some kind of red pine. Even though there was lots of moisture and the sugar dissolved completely, it never fermented the way it's supposed to. It's been sitting for a little over a month now, and starting to taste pretty good, nevertheless.
I did fir and spruce tips a little earlier in the year and
should probably bottle those soon. I give them a stir and a taste from time to time and, to me and my husband, they taste waaaay better than maple syrup and better than the pine cone syrup. I don't really include refined sugar in my diet, so I wasn't sure what I'd do with this stuff. My husband informed me he'll be happy to consume it Winnie the Pooh style, so I guess it'll get used.
It's ridiculously easy to make. The hardest part is getting the pine cones.