New Filter Icons

Two ideas I've had since the original post that I like:
1. Square Peg, Round Hole. I like this one because it's something almost everyone understands since they're a kid. It shows exclusivity, simply.
2. Downward Filtration. I like this one because there are many lines hitting a filter, but one prevails. Again, exclusivity, simply.

I think the shape on the left is more iconic, but the right might be more direct. Still working on revising these further, but I liked them enough to share.