Kirinite is a cast polymethyl methacrylate (PMMA), acrylic, which comes in a wide range of swirling colours and effects. Here it has been machined as a trumpet mouthpiece. It is also commonly used for knife handles and pen bodies.

Violin front and back. The soundboard (front) is quarter-sawn spruce rough shaped ready for tuning, and the back is figured maple.

While silver is the most common finish for a brass instrument mouthpiece, gold provides a tarnish-free surface that will hold its shine for longer. Maintaining a super smooth finish means the mouthpiece feels less 'grippy' and so can help with lip flexibility and control.

Clara compact concert ukulele from by Blackbird Guitars, made from Lingrove flax fibre reinforced epoxy. The soundboard is tuned for optimal rigidity and density without bracing, combining the tone of wood with the lightness and durability of composite. Image Blackbird Guitars.