The Missing FishBot
The FishBot 2L_H20 v01a is a rarity, with only three ever making it to full production. It seems that fish have a hard time deciding who gets the bigger tank - and without hands, it's unclear how they ever intended to control the 'Bot.
Two of the three are now in museums. The third is lost. Rumors of a Bangkok pirate gang run by a miniature whitetail shark & pilot fish are unconfirmed but may be a good starting point for anyone brave, or crazy, enough to try and locate the missing 'Bot.
If encountered, consider this 'Bot armed (though not literally) and very dangerous.