2. A Digging Machine
Given to: Elizabeth II, the queen
Contributed by: Crossrail Estimated worth: $15 million
In 2016, Queen Elizabeth II was given tunnel-under London drilling equipment as a birthday present. Crossrail, a central London train construction project, gifted the machine to Her Majesty.

Queen Elizabeth II: A Digger’s Machine @arstechnica/Pinterest
Undoubtedly, this is among the strangest presents Queen Elizabeth ever had. Additionally, Crossrail “sent the Queen a tooth from a tunnelling boring machine called Elizabeth,” according to The Mirror. What the Queen did with the contraption in the end and its current location are unknown.
