[Metalab] led throwies with biobatteries

[Bernhard Kuemel]

On 11/23/2010 09:45 PM, Sven Guckes wrote:
> * Damian Stewart <damian.ml at frey.co.nz> [2010-11-23 14:31]:
>> well, it still just _feels_ wrong
>> to go and throw batteries around...
> 
> biodigradable batteries, anyone?
> now *that* would cause a craze! :)

Stick some copper and zinc in a lemon. Copper is harmful to the
environment, though. A graphite rod might do instead.

Bernhard