Thought this was pretty cool.

http://www.breitbart.tv/?p=35904

Good for him; I like that kid. Might be a future snowmaking director or mountain-ops manager in the making.

$500 bucks! That sounds a little cheap. But if he can make it for that he should sell the plans. I would build my own backyard hill for that!

The plans are out there. http://www.snowathome.com/free_plans.php

I am guessing the 500$ figure does not inclue the air compressor or pressure washer. I believe most of those plans were from an old snowmakers at home list. There is someone here on the board that used to build a snowpark in his back yard and had links to the forum in his blog. Can't remember the name. Perhaps he will see the thread and post.