This is what most people do with dichroic glass; they cut pieces and assemble them onto a plain background, then cap them to make pretty doohickeys. I’ve seen a lot of jewelry like this. In fact, almost all glass jewelry looks something like this. I admit, it’s amazingly pretty, but it’s so easy that it feels a little cheap to make this and call it art.
I have not yet drilled holes or glued a finding to make this into a keychain. I’m not sure if I will.