The Smokey Amp. £24.95 ($46.90) A guitar amplifier in a cigarette box? What next, a computer in a beer can?

 One square battery will give you about ten hours of playing time, and there’s a 0.5w output into the built-in speaker. Of course, you’re not going to play Wembley with one, but a whopping great Marshall doesn’t fit in your pocket, does it?