the ZPM from the Stargate Series
Below is the different static versions, first one is the one I originally pixeled then one with different layers both of which are supposed to be charged but made to look that way differently. The one on the left is supposed to be depleted the top level group has a white border the lower does not.
Seperate files for the bordered versions can be found at my photo album
this is one that is depleting
This one is pusing (yes I know they actually dont do that)
And this one is getting charged