I'm not sure if a floating "Head" counts as an appearance, but I notice that Marvel Fanfare # 29 (Oct 1986) features Sasquatch's head. I picked up issue 29 back in the day after the Alpha Flight story in issue 28, hoping to see more Alpha, but instead, I got a wonderful treat. It's actually an Incredible Hulk story, pencilled by John Byrne. It's quite unusual in that each panel is a full page. Basically you get an entire comic of absolutely wonderful FULL PAGE Byrne illustrations. Sas's head appears in a field of various other Marvel char heads. Check it out, if you're a Byrne fan, Sas fan, or you think a floating "Head" counts as an AF appearance.
Love,
rplass
PS Wasn't there a silly self-referential floating head joke in a recent TANADAF issue?