I actually did smoke morning glory seeds a long time ago. I think I was like 14 or 15 years old, and my older brother told my friends and I that if you smoked the seeds you got high similar to smoking pot. I knew what pot was because my brother smoked up in his room all the time, but I had not yet tried it.
So we went to the store, bought a few packets of seeds, and went out in the woods and smoked some out of a homemade pipe we fashioned from the end of an old garden hose. I remember being disappointed because all I felt was a headache. True story.
IIRC, dried banana peels were another thing that were “rumored” to get you high if your smoked them. Never tried that though. Eventually, I just started smoking weed