re: All you people invading Texas for the eclipse, be prepared for disappointment

I remember back circa 1978 there was a big eclipse or something. I was in 3rd grade and as the big day was getting closer, we designed contraptions that we put on our heads with cardboard, tin foil, and construction paper, and stuck a tiny pin-hole in it so we could see out. Does this sound like something anyone else did? And why the tin foil?