Here’s a recipe for Banana Vanilla Rum I saved from a TTOL member’s post back in July, 2009. Not sure who the Original Poster was but the result is a great sample taste from the island…

“Banana Vanilla Rum...from a previous post

1.5 liter bottle of Meyer's dark rum.
2 vanilla beans
2 bananas
one empty 1.5 liter bottle (dark glass if possible)
5 cups water
1 cup sugar (or two if you have a sweet tooth)
heat water and dissolve sugar to make a sugar syrup
split rum equally between the two bottles
split sugar syrup equally between the two bottles
split banana to fit through the neck of the bottle and put one banana in each bottle
split each vanilla bean length wise and put one bean in each bottle
put the bottles on a sunny window ledge and rotate once a day...

And here's the hardest part...wait at least three weeks (longer is better)!!!!”