This vintage G1  mommy or mummy charm is Fair Play. She's yellow with aqua blue hair and an orange megaphone for her symbol.

The  were originally available in  of the My Little Pony line in specially marked My Little Pony packages. There were 20 different charms to collect and they could attach to a charm bracelet available separately through a .

Fair Play has a bright orange spot on the back of her body, as shown in the photos, but is otherwise in good vintage condition.

The pony is flat on the bottom and is marked "1983 Hasbro."

Measurements:

Height: 1 inch (2.5 cm)