Hi. There are many members who are hoping for an US version of Starkiller's lightsaber. US does not make replica copies but does their own vision which often is quite close. Not enough to cause copyright and legal concerns.
Here's the thread that you can add to with your saber related ideas. US staff do check in to see what members have suggested and sometimes we see the accepted results.
http://www.saberforum.com/index.php?topic=831.msg8058#msg8058