Sunshinegender 

1. A gender related to happiness, happy-go-lucky and positivity. 

2. A gender related to sunshine. 

Pronoun ideas:
Sun/Suns/Sunself 
Shine/Shines/Shineselfs 
Sun/Sunshine/Sunshines/Sunshineself 
Shine/Sunshine/Sunshines/Sunshineself 
Sun/Shine/Sunshines/Sunshineself 

Pls tell me if something like this already exists!!