The earrings you want to imitate are fantastic!
I know how to do a 2-dimensional version of this, I suspect a 3-D version would be similar. To do the 2-D version, string a number of beads on to a piece of thin, strong wire, then thread the wire back through the beads again, and pull the wire from both ends. YOu'll get a circle. I'm sure you could adapt this technique to get a fairly similar result. I've also just strung a bunch of beads onto one wire, coiled the bead full of wires into a ball shape, and twisted the wire in and amongst the beads til it all stays together. Not as elegant a technique, but effective.
Thanks! Will try it out and post a pic if it turns out well!