Want a couple hours of fun?  Get a soldering iron, and a pack of plastic Cowboys and Indians.  In my case I borrowed my father-in-laws soldering iron.  ( I think I still have it too!)  I imagine you can do it with army men as well.  Some were made by me, some were made by my wife's brothers-in-law.
So a couple bucks spent and loads of fun and I even got a free soldering iron out of it.  Thanks Rick!