Beyond Stupid Etiquette Question

This is pretty ludicrous, but here it goes.

So I'm doing the bizarre little Venetian theme, and had intended on having little masks popping up all over the place, place card table, cake table, originally in the CPs but not anymore since they're non-floral now, and full size bride and groom masks for the sweetheart table. Not that it's a particularly bizarre theme, just that it's not a Halloween wedding, so a little unusual for Christmas.

My friend's wedding was last night, and she did a Nightmare Before Christmas theme, with Jack and Sally unity candle holders, cake topper, on the seating diagram, etc. So kind of a Halloween in the dead of winter type theme. Her favors? Venetian Masks.

Now we didn't discuss this together at all, and I had absolutely no idea this was her favor until we got to the table and I freaked, in a good way, because I was so excited to get one because I'm obsessed with Venetian masks LOL.

But now I'm kind of like damn, it's going to look like I jacked her idea, when it was my intention all along to incorporate this element into my theme.

I'm sure she won't mind because she's not like that at all, an no one else from her wedding will be at ours. But do you think it's in poor taste now to do the same thing, being that her wedding was first?