Through an automatic coin dispenser in the Tropical House two coins are available at 2 euros per coin – one depicts elephant Carl of Tallinn Zoo, the other polar bear Franz. . 

 In the Elephant House of the zoo there is an elongated coin machine. After you have inserted 1 euro and a 5 cent euro coin, the machine presses from the latter an elongated token coin with an image of the zoo logo, a chimpanzee or a lion.

Source: loomaaed.ee