Combine Village Sim with Fish Tycoon to create Sea Monkey Sim. Since the island is magical why wouldn't there be a colony of Sea Monkeys living in one of the island's coves.

Not only could they do some of the tasks found in Village Sim, but you could teach them tricks to entertain you and themselves. You could also be in charge of regulating and balancing the environment as well as keeping them healthy like in Fish Tycoon.