Hack Of The Night : How to make clear ice

Maybe it was for a Halloween party, or just for fun, but you might have tried to make ice cubes with those little plastic flies in them.  Thing is, the ice was so cloudy that you couldn't even really make out what was inside the ice cube.  The problem is that you need clear ice, and just freezing tap water will leave you with cloudy ice.  But Derek, how ever do I go about making said clear ice cubes with tiny little plastic flies in them?  Here's how!

*side bar - if you are adding critters, boil the water, THEN put them in before you freeze the boiled water*