We've had such puzzlers as a jellied pot of gone off sweet and sour sauce, a box of ceramic meerkats, a shot down the neck of a cider bottle and even a darning mushroom - but this one got my favourite response:
My mother was delighted to hear that this was the first response, and poor Clare was mortified (until I explained how amused Mum was). That's Mum's wedding ring - and she's forever taunting my stepfather for it's... interesting look. In all fairness, she does make a good point.
It DOES look like a curtain ring: http://www.johnlewis.com/157596/Product.aspx
You're welcome to join us on Google+ to play, or ping me an email if you've got a good puzzler for us. (Don't forget to tell me what your picture is, so I can congratulate the person that gets it right!)