First up we have the main duo of Fushigiboshi no Futagohime.



Fine's appetite is noted even in her cuddly little days. 

Next up we have the cast of Otogi-Jushi Akazukin

Starting with our protagonist and title character the very day she was born.



And at age 3. 



It seems she actually was Little Red Riding HOOD back then, having traded it in for a more combat suitable helmet once she became an awesome fire mage.

Next we have Shirayukihime, aka Snow White, straight from an age-regression episode.



There were a few flashbacks of her when she was actually that young and she doesn't look any different. XD

And now Ibarahime, this show's version of Sleeping Beauty.



And my personal favorite, Gretel.



Who could forget the queen of magical girls, Usagi?





And even though she's more of a 'dark' magical girl, here's the super adorable Rue!


And here we have the heroine of Heartcatch, Tsubomi.



And again at age 5.



And here we have the star of Fresh Precure

we have the star of Fresh Precure.

Hana!

Yuu Morisawa!


from the Creamy Mami "Zutto Motto Kitto" music video

Not sure if this counts, but here's Sailor Chibichibi! 



And Sailor Chibimoon

you want magical girl babies? 

I'll give you magical girl babies

If it was ANY SEASON but Doki, I would ask how I could inject it into my bloodstream. 

Oh well, we still have this.



Edit: It's time for some tiny Yes Cures.

Well, here's 2/5 of the PMMM cast and Hitomi:

And now a tiny queen of feels.



And a tiny Minako



And finally, some tiny Ako-baby!





Seriously. Look how tiiiiiiiiiiiiiiiiiiny she is compared to her parents.

And now some baby pics of my current favorite tagging nightmare, Pelsia/Persia/Perusha/Whatever!

First a flashback to when she was a tiny little thing living in Africa.



Now some scenes from an episode where she de-ages herself and has to reverse the spell repeatedly due to her developing speech skills.

1st, a happy smiley Utau from Shugo Chara


Also, some super cute pics of Sae (and Nanaka) from Magic Users Club

Here's a picture of Mary Bell (Floral Magician Mary Bell) as a baby!

Nagisa Misumi(Futari wa Pretty cure)


Luchia Nanami(Mermaid Melody)

Here's another one! It's Miyako from Powerpuff Girls Z!

Little Rei Hino, such flaming spirit, amazing, wow.



Such innocence Makoto. A good pic indeed, hard to imagine her usual fierceness here.