This easy bead necklace is made in I-cord, with increases and decreases in which wooden or foam beads are placed as you knit. As written it stretches to fit over most heads, but you can keep working in the same manner for a necklace as long as you like.

This pattern was on About.com (which no longer exists) and has been deleted from their site, but for now it can still be found on the Internet Archive. They redirect and delete pages a lot so you may want to download/print to save.