How to Make a Super-Bad Rave Mask (LED) by gardnsound

Copper pipe glockenspiel by arpruss

Googly Sound (Looking back!) by bricabracwizard

Meowsic Keyboard Output Jack by randofo

MP3 Interface for Arduino: Cheap and Easy by dresch

Philadelphia Museum of Art Guitar Pick by jameso

Jerrycan speakers by Patenteux du Nord

StyloBuzz - Synthesizer by rarebeasts

Saxophone Alchemy by joechacon98

The incredibly simple cardboard box electric diddley bow … by offtandiscord

'Amplify' : Radio Hack. by JackGFisher

Roll Your Own Bongo Cajon by pdub77

Playable Cardboard Ukulele... by eplunkett

7FT Gundam - Ultimate Papercraft by visualspicer

PVC Instrument by tallman1996

More Aesthetic Hard Drive Speaker by leevonk

How to Build a Strum-Stick Musical Instrument by evan808