Chocolate Rum

I'm trying to find a brand of Chocolate Rum. I ran a cross a drink recipe that calls for it and I can seemingly find every other flavor known to man except chocolate. I've done internet searches and now have many recipes for "chocolate rum balls' but they don't seem to work in the drink and they crowd out the ice. Any help?

Last year at Hukilau the "Rum Review Pages" website guys were there and they had their portable tiki bar and a whole line of flavored rums. If I remember right (and it was Hukilau and I was probably drunk so I may not remember right) one of them was a chocolate rum. I think they also had a recipe for chocolate rums balls in their rum recipes book. Those same guys are probably back at Hukilau right now, but if you can find them I think they can probably point you in the right direction.