Shorten necklace.

[way-back-alone.livejournal.com]

So I bought this necklace off of ebay, and I got it in the mail today. I really like it, except it's a bit longer than I thought. Does anyone have any ideas on how I can shorten it? I can't just remove the beads because they don't slide--they are securely in place.

I also thought about just putting the clasp in between beads (so that the excess is in the back hanging down), but since the beads go from large in the middle and progressively get smaller towards the ends, it looks a bit lopsided.

Any ideas?