[mecham]

Sheesh. That's a bit creepy in my taste.

I know it's just female transformations, but hear me out, because it almost happened.
In an old cartoon of the wizard of Oz based on the story Ozma of Oz, Dorothy, the usual trio, and Tik-Tok have to find a lost prince being held captive in one of the ornaments being held by the goblin king. If they guess wrong, they get turned into an ornament. And it's not the flash of light thing we see in Return to Oz. This is decently transformation animation.

While there, tik-tok sits on a chair to think about how he would do it. Unfortunately that was breaking the first rule, and that was don't touch an ornament until you're very sure. Next thing you know, Tik-Tok is melting into...wait for it...a pillow! (Dahdah!)

Later on, the lion turns into an eagle, the tin man turns into a seal, and the scarecrow turns into a large crystal orb hanging from the ceiling.
The prince, it appears, is a small tiger cub.

But trust me, if Dorothy was wrong, who knows what she would have turned into? Excuse me, melted into.