The Plastic Speaker Project aims to stop plastic waste from going to landfills and incinerators by producing a speaker made from 100 used plastic bags. These bags are melted and compressed to create a "marble dough" which is then placed into compression molds to form the shape of the speaker. Electr

A polypropylene (PP) speaker is a type of speaker made from a polymer with a specific gravity of 0.92. The material is highly resistant to tearing and scuffing, and has a high-quality, consistent thickness. These speakers are usually made with a thick gauge PP sheet, but a thinner gauge is also available.