Looking at the classic Braniac 5, in images by Cockrum, Grell and Giffen.
Y'know, it just occurred to me : Braniac 5 is essentially a Ken doll, with green face paint.
And... a little more convention goodness.
I wish I'd had the sense to take more photos at the last convention I went to. The girls walking around that day (Florida Supercon, in Miami) were beyond sexy.