At the end of February 2020, before the world shut down, I traveled to New Zealand (and Australia) and got to visit the Riff Raff statue (erected in 2004) in Embassy Park. It's in the historic part of downtown Hamilton, and features a winding path down to the river. The public restrooms look like Frank's lab wall, and there are numerous film quotes throughout the parks (on walls, park benches, etc.)
As of October 2021 the statue is "temporarily on the move" until early 2024 while the city plans to redesign the Waikato Regional Theatre and Riff Raff's park.