If it's a Maduro, something creamy like an ice cold Mudslide.
If it's full bodied a Havana Club Blanco & Coke.
If it's medium bodied, a Havana Club Blanco & Jones's Rootbeer.
If it's an Opus X, like at Casa Fuente, can't beat Montecristo 12 year old rum on the rocks or with a few splashes of...