 Vintage mugs, whether made by a professional manufacturer or by hobbyists, were once found in abundance on the shelves of junk shops in the 1980s and '90s but became a sought-after item for those who were responsible for the revival of interest from tiki's heyday.Such historical mugs were first systemically catalogued in 2003 by "Duke Carter" in a self-published book that was considered important to the renaissance of tiki culture.Some tiki mugs have become quite valuable, with one estimation of a single mug's worth in 2019 for the "Parksmith Fertility Goddess Decanter" coming in at over $5,000.