I seen an advertisement a while back on a 100% sealed aquarium. It had a certain type of liquid inside the little sphere. Also there was a branch inside and some shrimp. When I read up on it, it's one living cycle.
. It's a pretty cool set up, except the shrimp only have a year or two before they die and then there isn't anything moving to look at. That and the price is a bit out there for a glorified snow globe ;D. And yeah I want one... lol.
I've seen these things sold at Brookstone, for 60-some dollars. Story:
My sister thought it was a fancy snowglobe, and shook it - then she saw the poster which described what it really was. She backed away very nonchalantly, and no one ever caught on to who had killed the shrimp.
I feel sorry for whoever bought that particular one, though.