Amplifier Dock is a passive amplifier and docking solution for iPhone and iPod touch that utilizes the shape and material of an ordinary ceramic bowl. Designed for disassembly, the ceramic bowl may be reused, steel hardware may be recycled, and hardwood/
iPhone amplifiers made of salvaged brass instruments. Analog Tele-Phonographers, amplifiers for iPhones and iPads that are built out of repurposed brass instruments and require no external power source!
Pringle Can Amplifier DIY: Cut somewhat smaller hole for phone inches from end of can, tape medium binder clip to each side of can, half way up. Spray paint entire thing if desired. Insert piece of squished toilet paper into open end of tube.