This dude I was skiing in France with mixed vodka with strong stawberry milshake and it was awesome. It was 1 part vodka, 2 parts milkshake and you could barely taste the vodka - it was so sweet (pic below).
And to the thread poster - Sambuca is best straight - doesn't mic well from my experience. And Tequila isn't great either. Stick with vodka or whiskey.