Yo guys, like the title says, I just found some quick, maybe-real-maybe-not AR in the manga version of
Space Battleship Yamato 2199.
Long story short (Since I know jack about the context), the Yamato and its crew pass through a portal or something, with a psychedelic sequence as they're going through it. During that sequence, female crew member Makoto quickly regresses in age, into a baby and then a floating fetus. As the Yamato exits the portal, the weird effects stop, and Makoto returns to normal.
It's pretty quick and doesn't have any oversized clothes, but it's pretty well drawn and well done anyway. It may or may not be a hallucination, though, as it happens alongside other weird stuff, and it shows her (tastefully) naked even though she's supposed to be in her space suit. Still, I liked it enough to want to share it anyway.
I only uploaded the relevant pages for convenience's sake, the rest of the chapter can be seen here:
http://ourstarblazers.com/vault/2199manga06/