lol
I just had this idea: an online service like bitcoin faucet that would send satoshis to banknotes photographed with the "bitcoin" grafitti on it.
You would exchange the notes by post and have a user reputation make it belivable. What do you reckon?
The idea needs being polished but basically, users would not mind receiving notes by post if they could trust the other side, and the game would be to 'kill' as much notes as possible.
'Kill' in a good sense. That is, making them more alive