A few weeks back I was clearing out some cupboards and discovered this tool - its a telescopic pole with a magnet on the end. It has a comfortable grip and the top spins. I believe it is used in the motoring trade to recover metal objects that have fallen into an engine bay.
I have searched google and this is the thing I am talking about. Some of them seem to have pen style handles and others like the one below - like a golf club - I would recommend the latter.
For £4 you will not be disappointed