You actually got some good one, the red and rock ones are kinda hard to get

.
Otherwise, the gold dragon comes from a gold colored egg, Christmas egg was probably only released for Christmas, hum... I can't remember others right now... Let me see...
If you go on this page :
here, and scroll down, you can see most of hte eggs, although I did notice the seasons eggs are missing (so might be others missing too, but it still gives you a pretty good idea).
Right now I'm having trouble adding my scroll to this site, but if you need views you can add them
here (I added yours Nikki, they were in dire need and only have two days left, hope you don't mind), all they ask of you is that you click on 20 eggs a day in their list, it take 3 minutes at the most

. You can also add them
here.
I tried breeding two of my adults dragon, got one egg out of it

, and my four other eggs have all hatched

.
@Emerald I love your idea of having a dragon army in the colors of Ireland !

, so far I'm only trying to get one of each dragon, but I know it's going to get harder with the rare ones, in the mean time, well, my favorite color is still purple, so I might just adopt a few more of them

.