Back in the 70s, I was very into macrame. I remember making plant hangers, wall hangings, and, of course, lots of jewelry. Heres a picture of an actual choker necklace that somehow survived from my macrame glory days .
To get the supplies you need to get started, it can cost as little as $20. Many of the items are available in local craft stores as well as some discount stores, so they are also fairly easy to find.