More to explore:
iPhone Amplifier Clutch.
This is awesome lol
ARKCANARY II :: Low-tech megaphone for iPhone ($10.00)
ARKHIPPO II Red
White Megaphone for iPhone / by Enrico Bosa & Isabella Lovero
AM/FM radio speaker box - works with iPod or iPhone
Balloon USB speaker - Want it
Speakers that can go throughout the house. - this is awesome... Great Christmas gift for him
Black MegaPhone iPhone Amplifier
Touch of Modern
Awesome - a phone handset for your iPhone or iPad!