It was suggested on my Deviantart (verucagloop) So I did it.

Anna is walking around Arendelle with Olaf when a stranger throws her some Candy, Gum to be precise.

After lots of chewing and bubbles she turns blue and starts to inflate.

This is a pretty simple roleplay but totally effective. Green screen, make up and video effects.

Lots of gum chewing and bubble popping.