Custom guitar maker Tate Chmielewski crafted this electric guitar using an old ammunition case. And if that isn't enough weapons-related miscellania for you, the volume knob is made from a shotgun shell.
The group Walk Off the Earth performs the song "Somebody That I Used to Know," originally by the Australian singer-songwriter Gotye. The catch? They all play on different parts of the same guitar.
It'd be easy to dismiss the five-musicians-one-guitar schtick as a gimmick, but the group actually creates a beautifully-executed rendition of the song in its own right, perfect for listening if you're celebrating Single's Awareness Day today.