The Swampbox amplifier is made from an old geigercounter box. It produces a warm and growly sound, delivered through a 30-watt recycled PA amplifier, and is ideal for use with a Smokehead guitar. This amp can also be powered by battery. Go to youtu.be/c4Mb3DJoBzE to hear it in action with Smokehead 4 (blue Mercedes hubcap).
The smokehead swampBox