Well, I know to stay in good standing, I should jump on the band wagon, and say how awful, it is to resell these items. But I don't real give a flying plop about recasting. I don't do it myself, because I don't want to get kicked off of here, and I try not to buy recast stuff so I can stay here, but I really don't care if someone recast me, and I really think the lot is a bunch of winners, for winching about recasting, when that is all we do here. I have said it before, and I'll say it again. THAT IS WHAT WE DO HERE. We see a prop we like, and we recreated, stealling the "intolectual property" of the prose, and make money off of it. Then when one of use get a screen used prop, or casting of one, we all ask, "can you do a run of castings". But then when someone recasts, that recast, or recreation, of someone else work, we all wine, "boo, hoo, your so evil, for steeling, that I stole"
You have all these folk saying these are recast, but not one of them has said beyond a doubt how actually made them in the first play. It could have been the scum bag that sold them to you. He could have made the originals based on an icons, and other replicas, and then casted his own work, and just said it was from Fox, to make it look more valuable, then his own work. No-one here knows for a fact that, that is not what happened. I have seen a lot of scratch built stuff over the years, that is based off of icons, and others, because they were clear representations, then some blurry pic.
Until one member comes forward, and says "that is all my work" and shows pics to proove it, I don't see anything wrong with what your are doing. (other then you REALLY should have told the folks in your auction the true condition of the molds, that really want very nice. even if they could clean them up, they should know what they are getting, even if you didn't)
I'm so sick of folks saying, "Oh, you unknowingly bout something we think is recast, you should toss it, and burn it" You work hard for you money, we all do, no-one should just though money away, just because of a simple mistake.
Plus, just because the folks here, are winners about recasting, doesn't mean there are not plenty of folk on ebay that would be just fine with molds of a recasted item.
If you don't want the parts, I think you should sell them, but just be clear about what they are, and the condition they are in. Tell folks that you don't know who made them, that they may be "recast" and that they are in bad shape, and if someone else buys then it's on them. Or give them as a gift to a kid or something.