I'm glad this didn't ask what you play well. I play strings and more recently percussion:

Strings:

Guitar (mostly slide, mostly blues)
Mandolin
Banjo
Oud

Percussion:

Darbuka
Riqq
Dholak
Madal
Bongos

I've also got a fiddle which is an effective torture instrument in my hands. Also Tabla drums, but I underestimated the skill needed to play these well! I may come back to them one day. Riqq is a new instrument to me, but I'm amazed how versatile they are. The Oud is also fairly new, but I love how expressive and moody they are. Banjo though is the "desert island" instrument for me...

Pete.