Hit the thumbnails for step by step instructions.

I've long been in need of a bubbler to diffuse water flow. They're great for watering, because you can turn the hose way up and it will fill a contained bed really quickly without digging a hole.

I don't know where to buy them these days though, and then realized I could pretty easily make one myself.

It works like a charm, and is made from trash, which is about as cheap as things get.