In Shei-gen, there is a hotel on the west side of the Island called The Daisy Chain. If you enter Shei-gen from the Los Muertos side, it is between the two highways. At the top of this hotel is a pool. In the pool is a rubber duck toy. You can throw the toy at people and it will make a squeaky sound like a real rubber duck toy.

There is a duck in the hot tub in La Mugre, which is the first island with Los Muertos. You can find it at the apartment complex where you kill Violeta "Santa Maria" Sanchez.