A small copper can. Long curved spout connected at the bottom. And a nice big handle. It was a birthday gift back when.
I like the steady stream of water. Not too much, not too little. I like the look and feel of metal. I like the weight and feel of the can. Its small, so sometimes I keep a full gallon of water nearby to refill it with.
I like to water and thoroughly wet the soil. Then I wait until the soil top dries out and the seedlings start to look like they are almost starting to wilt before I water again.