This is filter made from a metal watering can. It'd be simple to make & I think it's darn cute too. I got it from a BH&G magazine that I picked tonite.
http://davesgarden.com/journal/viewentry/16842/index.html
Water can filter
That is a cute idea! Looks great and would work for those who have small ponds.
Toadlily
Ohhh poppysue--thank you for sharing this idea. I made a small stream like waterfall for my son to hear water noise at our pond but he wasn't impressed at all because it didn't make enough water noise for him. This idea of the watering can I can do and it should make him quite happy with his pond. :) Then I can use our old Bio-filter on our new bigger pond till I can devise a bigger bio-filter for it. Thanks alot!! :)