I recently bought one for my sister...now my Mam wants one. I believe they are imported from Italy as thats the only place I can find them online - but at £10 P&P I don't think so.
They measure approx 4"x4" and stand, rather than hang.
Mine was £1 in a charity shop, hence I can't find another. I've included a photo below.
Name your price...
If anyone knows where to buy them, that would also be great ;-)
PPG or BT