Originally Posted by
mantelclock
Sure, bring a concertina.
But seriously, Accordions and concertinas (free reed insturments) are about as non-waterproof as you can get. The bellows are made of cardboard and tape. Reeds could rust shut. A decent one is $1-2 K . I guess I'll be stuck with an MP3 player, and listening to the folks with Ukes.