No computer foolery here, no mirrors, and no tricks...
First I took a picture of an empty box with some candles on top, then a version where I laid my head inside (There were two boxes, one with a hole for my head, one without). The key was to only develop the parts I wanted on the same piece of paper in the darkroom.
The result was a bit disturbing | but went over well in class.
1991 - Dorm room, The Ohio State University