A tin whistle is an atonal instrument, typical of those carried by watchmen or gym instructors. You can apply it to wake nearby monsters from sleep. If your pet is close enough to hear the noise, then for the next few turns it will try to limit its movements to tiles nearer to you, but that is not guaranteed.
Because there is no specific material for tin, the game considers tin whistles to be made of generic metal.
- You produce a high whistling sound.
- You applied an uncursed or blessed tin whistle.
- You produce a shrill whistling sound.
- You applied a cursed tin whistle. Though the message is different, the whistle still has the same effect.
Watchmen are often (2/3) generated with a tin whistle, so a whistle dropped by one is almost certainly tin. Since the two types of whistle are already easy to distinguish, this fact is typically not useful.
Otherwise, the best use of tin whistles is with pets. Apply a tin whistle repeatedly until your pet comes to you; this can sometimes help you take pets through stairs or out of shops. If you find a magic whistle, then leave your tin whistle in a stash somewhere. Magic whistles are better because your pets immediately appear beside you and other monsters do not awake.