Garden wishing well - where to find?

I am looking for a decorative garden wishing well to cover over an actual well we have on our property. At the moment the well is just covered over with a huge piece of metal and whenever it rains a lot, the rain water spills over our garden and gets into our well, turning our drinking water a lovely shade of brown. So the decorative well will serve 2 purposes, to looking better and also to help keep the muddy ground water out of our well.

Where can I find these garden wishing wells - are they commonly available from garden centres? Advice and suggestions appreciated.

You should not leave your drinking water as exposed to the elements as that.

You should have the well sealed to avoid external polutants e.g. rodents

Who does that sort of thing?