You can buy them a the place called PAWS AND CLAWS and the member port. So you have to be a member.
By completing the sets
No, there is no hamster moshling on Moshi Monsters.
There is no squirrel moshling on Moshi Monsters.
There is no Bessy moshling on Moshi Monsters.
There is no Christmas moshling on Moshi Monsters.
There is not Moshling called Stingy on Moshi Monsters.
No, there is no Moshling named Boney on Moshi Monsters.
There is no moshling called Diamic on Moshi Monsters.
There is no Stringy Moshling on Moshi Monsters at this time.
There is no Moshling named Libby on Moshi Monsters.
There is no moshling named McNippy on Moshi Monsters.
As of May 2013, there is no moshling with the number 26 on Moshi Monsters.