Alien: HR Giger's Egg version III references cover for the Radio Times from Christmas 1969

leading from 

H R Giger's Art

and

Radio Times images 

a) HR Giger's Alien Egg version III

HR Giger's Egg version III (work 381) (1978)

b) The cover for the Radio Times from Christmas 1969? (source https://twitter.com/woodg31) 

c) In this comparison, Elvis' head becomes the vaginal opening of the Alien egg, and the antlers become the tube leading from the Facehugger to the egg opening.

d.i) The right lower antlers spikes become finger joints and the lower jaw of the deer becomes the base of the Face Hugger's body, while the deer's shoulder hump becomes the base of the Face Hugger's tail

d.ii) The main example of an antler spike that becomes a finger joint

d.iii) The lower jaw of the deer becomes the base of the Facehugger's body, while the deer's shoulder hump becomes the upper rounded upper part of the base of the  Face Hugger's tail