Construction with watering trough

[JXS]

I thoguht I saw on the net somewhere plans/ideas for constructing a pond (above ground) using a watering trough (the kind used to water livestock) and surrounded with block/bricks (like Pavestone).

Has anyone seen this, tried this, and can provide some input.

 

[addy1]

here are some links

http://www.ehow.com/how_5762773_keep-fish-water-troughs.html

http://davesgarden.com/community/forums/t/728314/