I am huge fan of deadzone and made these tiles to give you the game a bit for of a 3d look.
The standard deadzone board needs 64 75mm (3inch) squares. to play.
To stop your boards sliding around on the table, you can permantly glue them to a board or you can use self adhisive velcro or magnets to keep them steady.
Using Games workshops texture paint on the top squares improves the look of them a great deal.
please feel free to make sugestions about what you would like to see made next