Bundaberg Rum is a dark rum produced in Bundaberg, Australia, often referred to as "Bundy".
The Bundaberg Distilling Company owns its own cola

Cola

Cola is a carbonated beverage that was typically flavored by the kola nut as well as vanilla and other flavorings, however, some colas are now flavored artificially. It became popular worldwide after druggist John Pemberton invented Coca-Cola in 1886...

-producing facility, which supplies the cola for its ready-to-drink

Alcopop

Alcopop is a colloquial term describing certain flavored alcoholic beverages, including:#malt beverages to which various fruit juices or other flavorings have been added...

 Bundaberg Rum and Cola products.
Bundaberg Rum originated because the local sugar mills had a problem with what to do with the waste molasses

Molasses

Molasses is a viscous by-product of the processing of sugar cane, grapes or sugar beets into sugar. The word molasses comes from the Portuguese word melaço, which ultimately comes from mel, the Latin word for "honey". The quality of molasses depends on the maturity of the sugar cane or sugar beet,...

 after the sugar was extracted (it was heavy, difficult to transport and the costs of converting it to stock feed were rarely worth the effort).