First let me say, I saw this on Kiddley, I didn't come up with this great idea on my own : )
You'll need floral wire, buttons and wire cutters. Cut a piece of wire, about 20 inces long, then fold it in half.
Thread on 2-3 buttons
Hold the wire taut and start turning the buttons to make your twisted stem.
Thread on a couple more buttons, and twist again.
Make your stem as long as you like, and trim.