Country
One drink is tied to Singapore. The label on each says how: where it began, what the country is known for, what people drink there, or where the origin is disputed.
Associations are editorial judgements. The evidence link shows the source used.
Gin slings were being drunk in Singapore by 1897 and a Pink Sling appears in a Singapore newspaper in 1903. Raffles Hotel credits Ngiam Tong Boon at the Long Bar between 1899 and 1915, and Vermeire's 1922 book calls the Straits Sling a well known Singapore drink. The city is not in dispute; the recipe is, from the cherry brandy to the pineapple and grenadine that only the hotel's 1936 bar chit and 1970s revival support.
Confidence: highEvidence: diffordsguide.com (opens in a new tab)
Map data: Natural Earth, public domain.