At an antique store today in my search and there were 3 jars of nuthin but swirls...almost got em to keep ya going, but have enuf here to do just that!
Lol, cool. I'll give it my best at IDing them and in the process you will start to learn the traits. There doesn't seem to be any other way or a faster way... it just takes time and looking at a lot of marbles!