I already listed the El Dorado rum in the Brugal thread. Let's be honest, the OP wanted to know what your country was famous for. Most people in the world would recognize Guyana in terms of Jim Jones; sadly speaking.
How many awards have El Dorado won? I believe about four or five consecutively as best rum in the world. How many bars could you walk in an order a shot of said rum? The answer is most people don't recognize it. You can walk into any bar and have a shot of Wray and Nephew from Jamaica, and even Mount Gay from Barbados.
I'm patriotic as all Guyanese but I'm not going to stifle my conscious to reality. Yes we have gold like Republica Dominicana, South Africa, etc. We are talking about iconic brands or name associating. When one thinks about Jamaica, almost immediately the sight is Bob Marley and reggae music.
Greetings in the name if his imperial majesty Emperor Haile Selassie the first...
Jah Rastafari - kings of kings, lords of lords conquering lion from the tribe of Judah.
Ever liveth, ever faithful, ever sure. Bless up yuhself!