Y4 Will's wonderful Wonder monopoly
He has made the board with his own space 'Go to Court' perhaps fairer than a straight to Jail, although I don't think the odds are in favour of going free!
For each set he has things ranging from landmarks, seas, castles etc and has made a set of property cards, each one has a fact about that place.
He has 4 playing pieces, the patron saint for each UK country, where he has researched about them and made 'character cards' they also each have a special power/bonus that you can use up to 3 times in the game.
He has also made a set of 'Chance' and 'Community Chest' cards, some with a topical twist!