Kabaya released sets of two blue, pink and yellow character rubber stamps in boxes of milk caramels in 1987. Characters in the set were:
Miiko, Chem, Tall, Caty, Galileo, Sazan Lettuce, Martha, Airi, Mark, Leonoardo, ???
Airi
Chem
Galileo
Leonardo
Lettuce
Lily?
Mark
Martha
Miiko
Sazan
Tall
Caty and some other unknown ones.