Guitars are at least somewhat portable, but amps always seem to be less than portable. When you already have a guitar to carry around, an amp is just a clunky extra you wish you could live without. For those times when you don’t need something with stellar sound quality, these miniature amps will deliver decent sound, especially for their size. These are made out of old cigarette packs, which makes them pocket-sized. The amp has a 0.5w output and will play for ten hours when it has a full charge. You can purchase the Smokey Amp for $29.95 from Firebox.