The Puzzleboard (~$27) by OOOMS can be used in more ways than one:

each board can be used on its own as a cutting board or serving plate, or put some boards together and you have super-sized your workspace. It’s ideal for cutting those long baguettes! But the best thing is that any wineglass can be fitted into the blank spot of a board. Using the boards at parties allows guests to enjoy both wine & delicacies, while still having one hand free to greet other friends.