ThunderEggs, kind and location? Options

[Denise]

Here are a few eggs that jpolk send me as part of a rock trade we made.
Two of them are doubles, and the other two are about tennis ball sized.
It sure would be nice to know what kind of eggs they are, and where they are from before cutting them. Can anyone help me?

Attached image(s)

 

[Denise]

Baker Thundereggs sure are fantastic! Dan cut one open the other day that freaked Timmy out some.....hehe
It apparently had a fluid pocket inside it, so when it was cut open it had a empty soft looking "egg shell" like skin indide.
The look on his little face was priceless ( ) Next question was "What was inside that one, and where did it go???!!! (as hes looking around)

Heres where it got fun.... (mom loves to tease and have fun)
I said, "well Im not sure, but look at this spot"
He moves in to look close, and I growl...."GRRRRRR".
He jumped sky high....hehe I know, Im cruel.
After a bit of scolding from him, I told him it was just fluid (very very old fluid) that drained out when it was being cut.
Sure is a cool looking egg. The skin like film still isnt hard yet, so were being careful with it.
Not a good one, but heres a picture of it.








Here is a close up of a self collected Colorado Thunderegg. These sure are pretty!