 They typically depict Polynesian, mock-Polynesian, tropical, nautical, or retro themes, and as the term is used generically do not always emulate a tiki.When used to serve drinks they are frequently garnished with fruit or decorative drink umbrellas and swizzle sticks.Outside of tiki enthusiasts, the mugs are not commonly seen in use beyond tiki bars and restaurants, but some collect them as examples of kitsch.