I happen to be a fan of a newish Flash series called "Bloo Toons" (http://www.hinchy.us/porparch/blootoons/). It would be interesting to see what would happen if our own "LittleBloo" ever met one. Knowing her, just about anything's possible. And yes, according to Episode 10 of the series, that is roughly the size they are.

All relevant copyright stuffs are in the picture.

EDIT: New, non-broken link for anyone who still wants to see Bloo Toons. Thanks to Zach Hinchliffe for archiving them!