I think the butterfly pea tincture is the only one I've had. There's a Vietnamese restaurant a couple of blocks from our house that serves very good food, but isn't particularly pretentious, so the apparent sophistication (and by this I mean that I'm not particularly sophisticated in such things and may be wrong) of their seasonal cocktails surprises me. Anyway, that's where I had the butterfly pea cocktail.
It's actually the only coctail I've had there that was mildly disappointing, but it wasn't the butterfly pea ingredient that I didn't enjoy. I just found the drink to be a little weak and astringent, like maybe it had too much soda water.
We took some out-of-town guests there last night and I had a cocktail that was so good that my friend ordered one for herself. It had cognac, Grand Marnier, blood orange liquer, orange juice, ginger marmalade, lemon juice, and orange bitters. My friend had just told me earlier in the day that she wanted to try a variation on a margarita that she'd heard about, where the traditional margarita is shaken with orange marmalade, so maybe marmalade is becoming popular as a cocktail ingredient?
Maybe it's been popular for years. It's certainly less exotic that the ingredients in the article. As I said, I'm not particularly sophisticated in this area. In any case, the drink was really tasty!