Do you remember a few years back when Lucasfilm issued a CnD to some laser company just because their portable laser product visually resembled a lightsaber? I don't know the finer details, nor what happened afterward, but that was pretty fat-headed of Lucasfilm. Where do they get the gall?
I do. However considering the amount of CnDs they COULD be issuing (effectively shutting down large parts of communities like this forum) they're really quite lenient.
I believe their concern there was that the lasers were being advertised as ones you could make lightsabers with and were the type that could blind you if you're not careful (they had two guys fighting wearing sunglasses in their ad). Lucasfilm wasn't concerned about copyright so much as they were worried about liability. "Kid blinds himself with toy lightsaber" is not a good headline if you're Lucasfilm.