I bought a FRABILL airated minnow bucket. It was pricy at $40. It more than paid for itself over the last 2 years. It is a small insulated 8 qt cooler with the quite airaetor. I can leave 100 crappie minnows in it overnight and then fish all day without losing a single one. You can check it out at Cabellas or BassPro.

I would think you could make the same thing and buy the airator.

http://www.cabelas.com/fryprod-0/pro...7398.uts.shtml
http://www.basspro.com/Frabill-Min0%...52837/-1008697
http://www.frabill.com/bait-care-man...tion/1404.html