Sitting Mermaid Tail Add On:
Website: https://shop.craftyintentions.com/b/1UBHl
Ravelry: https://www.ravelry.com/patterns/library/doll-add-on-sitting-mermaid-tails
Etsy: https://www.etsy.com/listing/4461595799/doll-add-on-sitting-mermaid-tail-crochet
Doll Body Pattern:
Website: https://shop.craftyintentions.com/b/AFgsD
Ravelry: https://www.ravelry.com/patterns/library/doll-body-11
Etsy: https://www.etsy.com/listing/1854676450/doll-body-crochet-pattern-by-crafty