There is a White Negroni out in the world that utilizes Lillet Blanc, gin, and Suze. So why not make a black version of it? Old Tom gin, Jagermeister (yes, that Jagermeister), and sweet vermouth aim to make this variation on the classic.
There are many stories in history of the wrong thing happening at the right time. According to Andrew Friedman in Gary Regan's book The Negroni, grabbing the wrong bottle while making a Boulevardier added apple brandy to the cocktail instead of rye whiskey. A star was born in the Mela d'Alba, and the subject of Day 41's of #100DaysOfCocktails.