Idea: a flying imp is added to the game that is set to roam all over F2P. It always drops an interesting (but not rare) item like a clue scroll or a rune item or some random cool thing that makes it worth tracking down when you're bored. Maybe add one to P2P land and one to F2P land (or the wilderness), it spawns at a random unpredictable location and wanders randomly across the whole world making it somewhat hard to find and exciting if you happen to run into it. It is easy to kill but hard to catch, but always worth murdering if you happen across it.
I personally would love to hunt down a little fucker like that from time to time but maybe I'm just sadistic and really bored. Is this even close to a good or bad idea or am I smoking too much weed?
Peace over anger.
Honour over hate.
Strength over fear.
aka. punKrockeR