This is a new transponder design for this year's RoboGames. You can also choose to use a older transponder from last year's RoboGames as this year's design is mostly put in new voltage regulators and to replace the headers with the Dynamixel connectors.
After I finish testing the initial couple of transponders, I will place a order for more to be made. Does anyone need a transponder? Current MacroFab is charging $41.73 to make each transponder. Send me a private message if you are interested.
We will probably have a couple of transponders at RoboGames if anyone needs one.
If you want to make your own transponders, I've posted the files on github:
Here are the initial prototypes I've received from MacroFab and some some initial testing.