Gamesalor International via Amazon offers the Bone Collection Amplifier for Apple iPhone in Green, model no. A80396, for $6.09 with free shipping. That's a slight drop from last month's mention and is the lowest total price we could find by $24. This silicone stand purportedly adds 13 decibels to your iPhone's speaker without power. It fits the original iPhone, iPhone 3G/3GS, and iPhone 4.