Turtle Tots
The Turtle Tots (not to be confused with the TMNT Turtle Tots) were late 80's plush turtle dolls, made by Mattel, which you could take in and out of their shells (cases). There were lots of accessories available, such as strollers, bottles, and different articles of clothing. The Turtle Tots had names like Tuggy, Trista, Tootles, Teeny, and Trenda (are you sensing a pattern?).
