When we visited Glamis Castle (childhood home of the Queen Mother who was a Bowes Lyon) a couple of months ago it led to us planning a visit to The Bowes Museum which was set up by relatives of hers.
The museum’s most famous artefact is a pure silver automaton swan which dates from 1772, it’s a replica of a female mute swan. If you just want to see her moving you can skip to 4.50 on the You Tube video below. The swan catches a silver fish and eats it, but of course swans don’t eat fish as they are vegetarians! The silver work is amazing though.
You can read more about the museum here.