Again, with the relevant part emphasized again:
And Aaron said unto them, Break off the golden earrings, which [are] in the ears of your wives, of your sons, and of your daughters, and bring [them] unto me. And all the people brake off the golden earrings which [were] in their ears, and brought [them] unto Aaron. And he received [them] at their hand, and fashioned it with a graving tool, after he had made it a molten calf: and they said, These [be] thy gods, O Israel, which brought thee up out of the land of Egypt.
And when Aaron saw [it], he built an altar before it; and Aaron made proclamation, and said, To morrow [is] a feast to the LORD. - Exodus 32:1-5
To God be the glory, not man, never man.
Welcome to Catholic obfuscation. Its something they rely on frequently.
So you think that what Aaron was doing there was using a "holy thing for a holy purpose"?
That's not what I would ever call it.