A classic Scooby Doo board game is Monopoly from Milton Bradley. We have all played the game and raced around the board. In this version, everything is Scooby sized.
There are a couple editions available - Fright Fest and an older version. In the Fright Fest edition, you travel around the board attempting to purchase the haunts of Scooby Doo villains. If you purchase it, you can turn it into Scooby Snack Shacks and Dine & Dash Diners.
The game also features collectible pewter tokens of: Scooby-Doo, Shaggy, Fred, Velma, Daphne, and the Mystery Machine.