Crashin' Thrashin' Robot

If you do decide to make or buy one, they don't fight for you (if you want a novelty that does you can quest to get the mechanical yeti (http://www.wowhead.com/?item=15778#reward-from), they simply shoot little balls of fire at each other (if another person happens to summon theirs near yours) until randomly one dies. Then it just wanders around the area and disappears. When *destroyed* zoom into the wreckage and you'll see a little gobblin pilot laying on the ground. Cute novelty item referencing the old *Rockem Sockem Robots* some of us played with as a kid.

As of patch 2.3, these robots are bind on use so non-engineers can use them.

This thing is amazingly small and funny looking. Does anyone know if the robot is one time use or if it's re-usable over and over again?