Pescolino is made with recycled materials and has a heart device based on Arduino.
The hull is made of three 1.5-liter bottles and pieces of wood.
All the attaches are in hot glue and tape. The keel was made of silicone.
He uses two servo motors for movement and a DC motor for the fan for propulsion. Two status LED and batteries 12 AA batteries or two batteries rechargeable equivalent of 5 volts and 8 volts.
This is a view from top of Pescolino: