The simplest solution

Any idea what this is?

I bought this a few years ago to help me lose weight!  The idea was you wear it round your waist and it stops you over-eating as it tightens.  Yes, I was taken in by the photos of the slim models…and yes, it has pretty much sat in a drawer ever since!

But it did make me think about the simplicity behind the idea.  In essence it is a bit of string—and I paid over £20 for it.  (although what I was really paying for was the dream of being thin).

Is there a simple solution that meets the needs of your clients?