The Windilly
Developed by Balthazar Black.
Details: This instrument is part piano and part harmonica but produces sounds more similar to an accordion. It is a free-reed instrument with a keyboard that is played by blowing air through an attached mouthpiece and pressing a key. Pressing the key opens a hole allowing the air to flow through a reed. They can generally only cover three octaves but larger Windilly's could be made in order to cover more if a craftsman were determined enough.
Price: Price will range depending on what you want the materials it is made out of to be. Your typical wooden Windilly will cost you about 1 WP.
Other Information: It's a melodica with a better name.