|Bojan Djuric (Bosnia and Herzegowina)|
Electronic aquarium fishes
I have had some problems with aquarim fishes and their khm* short life span. It would be ideal to have electronic aquarium fishes that would swim around, without need to feed them, and watch temperature. They could work on small batteries or on hidrogen or oxygen, and you could change their colors hehe skins.
Reward: Few of those.