Blueberry Martini

I learned on their facebook page that one of our local pubs makes a blueberry martini. I knew there were lots of variations on the classic martini, I even drank one of its variants, but I didn't know there was a blueberry martini. I have no intention to go in a pub any time soon, but one day I hope to try it. I suspect it will be too sweet for me, but the blueberry being the emblematic berry of the Saguenay-Lac-Saint-Jean where I am from, I feel like it is my duty to give it a go. At least it'll have antioxidants. I guess I could try to make one myself, as I found a few recipes online.