How about some of those tron items for Blockland? Like the Tron light disc. The player would throw it at another player, and would bounce off walls, and would take 25% of the players health away, depending on where it hits him. Also, the Tron light Bike and The Light Car. They would both be black, but whatever color you paint it the vehicle spawn, is the color the car lines turn. The Light car would be a 2 seater vehicle, and would go reasonably fast. The Light bike would be a single seater, and the player would lay down on it, with both hands on the handle bars. The tron light, while moving, would leave a Light/Vapor trail behind
*the vehicle depending on the color or the spawn Brick.
Pictures:
Tron light disc
Tron Light Bike
Tron Light Car
*, like so