In Madagascar, when Gloria washes ashore, she has two starfish on her chest (beside the fact that there is nothing there to cover) and a crab on her crotch (make of that what you will).
Interesting variation in Disney's Fantasia, with female centaurs wearing tops and necklaces made out of flowers that appear to be motivated more by the Theiss Titillation Theory than actual modesty, even though the centauresses otherwise exhibit Barbie Doll Anatomy...
The Little Mermaid of course, though Ariel is unusual in that her top has a strap. Ursula has octopus flesh go over her chest instead, though. Some people think the overweight mermaid illusion seen in Ursula's song has her chest covered by scales, but looking closely reveals she too wears a Seashell Bra.
Before The Little Mermaid there was Peter Pan, whose mermaids sported a motley mix of Godiva Hair, seashell bras, and starfish pasties.
In Coraline, The Other Forcible wears one dressed as Venus. She's an obese old lady.