The Stella McCartney whistle is an awesomely luxe piece sure to please the shopper who has it all.

With a gleaming gold appearance and minimalist design, this noisemaker is an unexpected turn for the high-end animal-friendly visionary. Being sold this week on Net-a-Porter for an astounding $425, this is sure to be one of the most expensive whistles out there. Arguably an impressive collector's item, however, this accessory could be a historically important and unique piece. McCartney, who has long been known as somewhat of a black sheep in the fashion industry for her ethical values and offbeat aesthetic, couldn't be a better fit as a designer for this unusual piece.

Undeniably unnecessary yet remarkably gorgeous, this whistle brings beauty to a place and product where style is not usually found.