47. Little Trees

Year Invented: 1952

Designer: Julius Samann

Air fresheners can be found in almost any car these days. The tiny tree shape has become synonymous with "fresh air" (and used cars). Little trees, invented in 1952 by Julius Samann, are the original tree-shaped air freshener. This iconic design has found its way into pop culture and movies like The Fisher Kind, Seven, and Repo Man.

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