Some chain (an old necklace bought from a Charity shop will do)
Some nice beads
A necklace clasp and 2 jump rings
Pliers (I have 2 sets, one with round ends, which does help)
Use the pliers to open the jump rings and attach them to two small sections of chain and the clasp.
Step 2: Bead and Chain Necklace
Feed on some beads. I prefer to have a big one in the middle and smaller ones around it, but whatever you like.
You will then need to use your round ended pliers to roll an eye in the wire the other end as you will attach more chain. Use the cutter part of the pliers if you need to make the wire a little shorter.
Attach the next bit of chain.
When you get to a decent length, you can either just attach the ends together, or add a larger jump ring and add some chain and eyepin/wire drops.