As far as I know the first ever comic page featuring a She-Venom transforming from normal clothing into the Venom suit. Can't believe I hadn't had this done years ago.
Done by the great manic awhile ago.
Edit: Saw someone post this illegally (as in without my permission) on Comicvine and incorrectly label it as Ann Weying. It's not Weying, it's Mary Jane. The issue her outfit is from is Amazing Spiderman #339 if I remember right.
So yeah, screw off art thieves if you're not gonna get what you're stealing even labeled right.