Thunder Ear

The Thunder Ear is a device made by Hiccup in DreamWorks Dragons. It was made to locate the Screaming Death through it's scream. Stoick also said it could be used to hear enemy ships, but also used it to hear Gobber saying how useless Stoick would be without him, and to hear the baby Thunderdrums.

Appearance
The Thunder Ear is a large silver and red trumpet-like instrument. You would put your ear to the small end, and you would hear anything the large end was pointed at.

Trivia

 * The Thunder Ear might have come in handy if Bam hadn't destroyed it.
 * Bam destroyed it first by blasting sound into the large end, collapsing it. Then Bam screamed again, blowing away the pieces.