Aquarium

Submit an answer:

 

Each answer has a well-known mother:

Fitting the mothers into the boxes at the bottom yields the following completed grid:

KIMKARDASHIAN
PENELOPE
DEBBIEREYNOLDS
DAENERYSTARGARYEN
ELASTIGIRL
NECESSITY
REBECCA
GOLDE
THESTATUEOFLIBERTY

The highlighted column spells SPONGEBOB, whose mother is MARGARET SQUAREPANTS.