Buzz extension and retention piece - Manufacturer of mouthpiece clamps. Bob Reeves Brass Mouthpieces - Information on alterations, valve alignments and brass mouthpieces. Custom and stock mouthpieces are available. Zaja Musical Products - Valve oil, lubricants and accessories for brass instruments. FAQ and product descriptions. Warburton Music Products - Manufacturer of mouthpieces featuring a 2-piece design. One and three piece models and customization also available. Griego Mouthpieces - Specializes in trombone mouthpieces and leather accessories. MMP Brasswind Mouthpieces - Located in Luedenscheid, Germany. The site contains specifications, price lists, games, and warmup exercises. Stork Custom Mouthpieces - Custom-made and stock mouthpieces. Located in Plainfield, Vermont, USA. Fat Cat Instrument Co., Inc. - Non-toxic music instrument oil and tuning slide grease. Product descriptions and list of dealers. Curry Precision Mouthpieces - Mouthpieces and accessories for brass players. Includes dealer listing.