In February, I saw a very overtly feminine baby onesie that said "daddy is my valentine" and a very overtly masc baby onesie that said "mommy is my valentine" and that was so kooky nuts to me. First of all, the femme one was pink, and had princess sleeves, and flowers and hearts, and the masc one was deep blue and had dinosaurs and BONES on it, what? I mean, flowers and hearts, sure, that goes with a valentine theme. But dinosaurs and bones? And yes, maybe it would be fine to make a baby onesie that said "mommy and/or daddy is my valentine" etc because being someone's "valentine" is sort of childlike, and not inherently romantic/sexual thing. But then the gendering of those onesies made it very weird, because the masc onesie had to say "mommy is my valentine", and femme one had to say "daddy" like they were implying, "yes, it's romantic in nature, and YES this is HETEROSEXUAL BABY INCEST, this incestuous baby is NOT GAY." So someone was designing incest onesies and worried about the babies looking gay and not incestuous? Or maybe they just know only wacky straight parents will be buying that shit anyway.

So my answer is "baby clothes."