Thanks for the Eevvee!
Printed it together with the Pokeball ( https://www.printables.com/de/model/374028-pokeball/comments/903149). Eevvee was easy to print without any support structures, easy to sand and also easy to paint.
I inserted a magnet inside the Eevvee and the Pokeball to securly safe place the Pokémons inside (or on top) of the Pokeball.
I´m sure that I will print some of the other Pokemons as well.