I could see Akro, Art - the yellow is the key, I think. Everything else about it looks Vitro to me. Of course, I'll have to check my Vitro drawer now . . .
The first is referred to as a Moss Agate. Akro and Master both made them - I think this one is Akro. But I have nothing to offer on the two transparent swirls - too many companies made them and i don't see many features that would let me say one maker or another.
Your pics aren't so bad - I've seen far worse. Just remember to get a nice straight on shot of both cutoffs if you can find them.
The right one is giving me a little Vitro vibe but I doubt I'll ever be able to give you anything near a definitive ID on the left one. But you never know, someone else might take a shot at it.
You know I'm just goofin' with you, and you can find the rules for play online, easy enough. It's a lot of fun and way harder than you might think. There are even variations of the game for two players.
Many manufacturers made very similar looking transparent swirls and there is nothing notable about this one that points me in a particular direction. And it wouldn't change the collectible or monetary value of this marble much, regardless of who made it.