Bring the fish back into the sea!
Choose your favorite fish and bring him back into the sea! You can see live how you rescue a fish.

Solution

You can see live how you rescue your favorite fish.

- An old cell phone is modified to swim and looking like a fish. The phone lies on a leaned table above an aquarium. Now if the mobile phone receive a call, it will slip off into the aquarium.
In the front of the aquarium is a camera to see all live.

(the mobile phones are donation from somewhere)