Here we'll continue talking about an idol or pieces of an idol that were found. We don't really know anything about them. It could be that they were for Avodah Zarah (idolatry) purposes, or it could be that they were not for Avodah Zarah purposes. We'll talk about what happens when somebody finds that type of sculpture.
The Mishnah says: If somebody finds broken pieces of an idol, they are permitted to benefit from them. You're allowed to benefit from broken pieces of a sculpture because you have a double doubt. We are talking about a situation where you don't know if it was actually being worshipped, number one. So it's possible that it was worshipped, and it's possible that it wasn't worshipped. And even if you want to say it was worshipped, maybe a person destroyed it in order to rid it of its Avodah Zarah status. So we have a double doubt, and in that type of situation, we're allowed to be lenient.
Matza tavnit yad. If you found the form of a hand or the form of a leg—not a broken-up leg or a piece of an arm—but here it was made in the mold, in the form of a hand or a leg, we say these are forbidden to benefit from, because these types of sculptures, a hand or a limb of something, are made to be worshipped as idols. And you can't presume that it was made to be worshipped as an idol. It was broken off from an idol, and therefore it's okay, but you have to assume that it's problematic.