If you dont mind hearing suggestions for more shrinking ideas.
Imagine 2 shrunken women, corner by a mouse. The mouse grabs one and starts to eat her, holding her in its little paws as it shoves her into its mouth.
In the middle of eating her, A cat comes up from behind, grabbing the mouse. While trying to escape the mouse's maw, the tiny girl only happens to fall out, onto the cat's tongue where she is swallowed regardless.
Then the last woman, either noticed by the cat and lapped up, or unnoticed and crushed under paw.
Might be a bit of a project but, maybe it inspires a smaller idea, pun intended.