She's wearing one of those Baby Looney Tunes styled diapers.

Someone mention that? Coincidentally, I'm actually liking that more than the regular Looney Tunes, especially Baby Sylvester, since that's who I mainly think of, especially since he said, "Good thing I brought a spare diaper." in one of the episodes when him, Baby Bugs, Baby Daffy, Baby Lola, Baby Melissa, Baby Petunia, Baby Elmer, Baby Wile, Baby Porky, Baby Yosemite and Baby Pepe weren't properly restroom-trained. It's called "Flush Hour." It's part of itself and "I Strain," which focuses on Baby Petunia's obsession with watching television. More on that later. As an extra note, every character I mentioned, which is all of them who wore diapers, and weren't properly restroom-trained to begin with, didn't use them, which is good, especially for Baby Sylvester. Another extra note is that in one of the episodes, "The Littlest Tweety," when the diapered babies were restroom-trained completely, we saw two flashbacks. One had Babies Bugs and Lola being restroom-trained, but Tweety was a real Baby then, as he wasn't restroom-trained, which explains the diaper, which he didn't use, fortunately. He appears in the second one, as well, but with Granny instead. But more on those later, as well. Sorry if it's long.