A buck per?

You could just buy cartons of cigarettes and chop off the butts, at that rate.

And for the illogical conclusion: buy factory equipment to make just the butts to minimise your running costs and limit supply chain dependency.

I joke, but this is surely what would eventuate.

There was a line in Discworld about some people in Ankh Morpork taking to breeding rats to collect the rat catching fee.

> There was a line in Discworld about some people in Ankh Morpork taking to breeding rats to collect the rat catching fee.

That is maybe based on Hanoi rat massacre. https://en.wikipedia.org/wiki/Great_Hanoi_Rat_Massacre

"Show me the incentive, and I will show you the outcome."