I love the eye! I have that one. I haven't used it yet but I'm not planning on getting rid of it. It is kind of heavy though. Eventually I'll find the perfect bag for it.
The tassel should be easy to use. It would go with a lot of bags.
I'm not thrilled with the rocket because it is so dark. The lemon doesn't do anything for me either, but if you find it useful as a holder for small items, you can use it either inside or outside your purse.
I prefer if hardware matches but if it doesn't, I'll still use it if I think it goes well with the bag.