Most costume changes in eight hours
Who
John Fitzsimmons, Easley's Fun Shop
Where
United States (Phoenix)
When

The most costume changes in eight hours is 178, and was achieved by John Fitzsimmons and Easley's Fun Shop (both USA) in Phoenix, Arizona, USA, on 18 September 2017.

John’s favourite book as a child was “Guinness World Records,” and he always dreamed of being a record holder. The attempt took 7 hr 25 min 49 sec.