Switchblade.
Ask Racer to release this. It's all TF2 stuff.http://forum.blockland.us/index.php?topic=51696.0
The wrench should be able to place small vehicles with automatic AI turrets on them using something like a brick placer with a very small "Too Far" distance. If it replaced your brick menu with the build menu options, then this could be possible. (Build Sentry/Dispenser/Teleports, Destroy Sentry/Dispenser/Teleports, Use Wrench would take up nine options)
-requests-
I could make a red wrench, but I cant make it make little droids and stuff, plus you would probably want animations, and I cant do that either =P