Another one from my collection of unusual instruments
This is probably my very favourite instrument, and the one I use all the time when gigging with the Pirates of St. Piran.
It is an Ozark professional series guitar/bouzouki, often called a gazouki. It has 8 strings in four pairs tuned GG DD AA EE which can be strung as 4 unison pairs for a full rich sound or with the Gs and Ds as octave pairs, for brighter more jangly sound.
@ludwigsdiana Yes, it's beautifully crafted. In the past Ozark made a lot of reasonable quality entry level instruments. But in recent years they have launched their Professional range and they really have raised the bar. :)