No matter how much we like to complain about today's society, people are still doing fun and creative things. Some of my favourites (see BookCrossing) use one of the 'old' activities and combine it with teh internets somehow. Nice new ideas sprout from that union all the time.
One you may or may not have heard of is yarnbombing. That's a kind of knitted graffity: people knit (or crotchet, I suppose) something to display in the public space. Like a colourful, cosy pyjama for a tree or traffic sign.
Sounds funny, I hear you say. Do people actually do that? Well, it appears they do and here's proof: a yarnbomb that I spotted in my city.

Don't you love it when people just get out there and do something to make their own environment more friendly? I sure do.