I just got asked for a tutorial on how to make one of these
You need:
1 or 2 pair of needlenose pliers
1 wire cutter
Spool of 18 or 20 gauge craft wire, depending on how thick you want the links to be. 18 gauge is thicker than 20. The above necklace is 20GA, but in the future, I will probably use 18 more frequently.
Beads, in whatever style and color you like. You can use anything from size 8 seed beads to FIMO polymer beads to carved wooden beads...your taste dictates!
Snip up a bunch of short lengths of wire. (I find it is handy to keep them on the upturned lid of an old yogurt cup. I use these to contain my beads, as well) The wire bits should usually be between 1cm and 2cm, typically, but if you have especially large beads, estimate for about 1cm longer than the bead itself.
Take a pair of pliers and bend a small loop in one end of a wire bit. It is usually sufficient to only make the loop as big as the tip of the pliers, though sometimes you need a bigger loop if the hole in the bead is especially large. Then, slide the bead on, and make a loop in the other end of the wire.
Start your second link by shaping the second bit of wire into the form of a J. Slip the hook of the "J" through the one of the loops on the first link, then use the tips of the pliers to close the hook of the "J" so that it is a loop. Add a bead to the straight end of the wire, and loop the open end closed. Add another link just as you did this one. Keep going in this fashion until the chain of beads and loops is as long as you would like. If you want a short necklace, you can add a spring or claw clasp to the very last loop, but if you wish to have a very long necklace, you do not need a clasp, as it should slip right over your head. Fun fact: the average woman's head measures 22.5" or 57.25cm! If you make your necklace a couple of inches or a few centimeters longer than that, you do not need a clasp.
If you want to have a dangly bit in the center, there are a couple of ways to do it. You can make a link like the very first one, then join both ends of the main strand to the top loop. You can also use a straight-pin with the sharp end snipped off, or a pre-made metal finding which looks somewhat like a super-long straight pin. You can also use things like flat filigree findings or pre-made charms as a central interest, if you are so inclined.
Here's an extreme close-up of some of the beads on my most recent necklace, and you can see how the links of loop-and-bead chainwork fit together.
Here's the central dangly bit, so you can see how I hooked two links to the central link of the lampwork charm.
I mention the use of two pair of needlenose pliers because sometimes, when you are working with very short wire bits and very small beads, it is difficult to hold the bead-and-wire steady while you are trying to create that second loop, and it would really be better if you could grip the straight end of the wire with one pair of pliers, right where it emerges from the bead, then use the other pair of pliers to form the loop. It requires an amount of manual dexterity, but it is much easier than it sounds when written out.