Just when you thought you had all the accessories for your games of Dropzone Commander, out comes one that is better than using d20's, and easy to use. Green Stuff Industries is on it when it comes to the needs of the game, so check these out!.
You get 5 for 5 bucks, not bad of a deal when you should never really need more than this. Pick up 2 sets if you are a heavy building destroyer.... (like myself). Technically you can use these numbered markers for quite a few different games for different reasons.
I would say the only problem with them is that shipping can cost more than the product. So while you are at it, take a look at some destroyed building markers.