After seeing Mark Evanier’s story about Forry Ackerman and monster-themed cereal, Bill Warren sent this related fannish memory:

At the 1972 Worldcon costume contest, Don Glut went as Frankenberry, pink with that huge head. It was scrupulously accurate. (Linda [Gray, who soon wed Don] went hubba hubba as “Conana,” with a sword she borrowed from Bruce Pelz, a few ounces of copper, a few hard of filmy yellow cloth.)

Don Glut as Frankenberry at the 1972 Worldcon. Photo by Al Kracalic.