Thus nifty item can be found at: http://tinyurl.com/57ofx8.
Dick Blick art supplies also has one that seems a little beefier - and is cheaper:
Since I would prefer to get mine sooner - I will probably see what my local craft or hobby store has.
And since we are talking about special little pieces - if you ever get a hankering to make a game that needs token - Cherry Tree Toys (http://tinyurl.com/5ryjcr) has a great deal on game pawns. They also have other tools and wood working equipment, and a nice variety of plans (especially wooden toy plans). And, just to keep it on topic, they have a variety of doll house / model building supplies that would be useful for set designers.