I'd totally do that too! Last time I had an egg that i wanted to keep, I just stuck it in the freezer.
Really? And it didn't explode in the freezer? I have bad freezer karma. Things are always exploding in mine. I didn't leave enough room on the jar of spaghetti sauce last time and ACK. What a mess.
Ohhhh its a good fart egg too! I've gotten 2 little white ones from my Campine. I blow out all there first eggs but I still have to blow out the fart ones just scared to break it! What a pretty color!