Silent Faux Wood AL-205 3D Acoustic Wall Panels (3 Pieces)
Acoustic Panels Self-Adhesive, 12 Pcs High Density Soundproofing Panels for Ceiling/Door/Wall Decoration and Acoustic Treatment (12" X 12" X 0.4") : Amazon.co.uk: Musical Instruments & DJ
Perforated Plywood Panels - Acoustic Panels by Specialised Panel Products