Signature drinks

It's high time I get a signature drink. For a while I was easy and ordered a local IPA anywhere I could (not much of a challenge in the last 10 years). But all that beer volume and gluten need to get checked. Wine is tricky because I like red the most, which doesn't always go well with summer heat, and it discolors your mouth like a mutherfucker. Ever smile for pictures at a party after a few glasses of wine when you're starting to feel nice and smooth, only to gasp in horror when you check yourself out in the bathroom later? Not hot.

Did you know the queen of England has a signature cocktail? She has one every day. It includes Dubonnet, which Wikipedia tells me is a fortified wine containing herbs. I like that idea. Overall the recipe can be called a Zaza. Oh how I'd like to offer the queen of England a Zaza.

While learning about Dubonnet I learned that I may just love old liquor ads.
They look like "period" ad replicas that chain restaurants sometimes plaster everywhere, only better.
The one with the cat was made for my future kitchen. Gimmee!!
All found using Google Images.

The Zaza contains gin, which is on my short list for liquor in my signature cocktail. Vodka, tasteless. Whiskey I get risky. Tequila's for margaritas. Rum --- how do I rhyme rum with cloying?

Goal - create a signature gin cocktail for me that is low in sugar, easy for any bartender at any bar to whip up, potent, delicious, and unique. Go!