Here's what I've been doing in my spare time. It's called Belegarth, a group of people gathering together with foam weapons waging war in local parks.
swords and various other weapons are made from PVC pipe and closed cell foam. complete rules and instructions for making weapons can be found almost any realm website. Its a nationwide organization, you can join up and fight with friends in a city near you!
here's the website for my realm Ebonhold.com
First pic: me in my chain shirt flanking right.
Pic #2: The lines clash. I'm in the center with the skull shield.
Pic #3: More mayhem.
Pic #4: A shot of the line before combat begins.
Edit: fixed link.