Ok, so, in the shows, we see Berrytown and Meadowsweet have "boy" ponies.
What about Sunbright? Does anyone remember?
If not, what symbol would make sense?
Looking at the MLW, Baby Sunbright (the toy) is the boy in the cartoon, and his name is Ikki. The daughter of the family is now Moki Sunbright, whose symbol is a lily and who is not based on a toy.