I thought this Daily Grail article was quite interesting. It describes how Guillermo del Toro and Terence McKenna saw UFOs which seemed to them like badly designed fakes. The article interprets this in terms of the Co-creation Hypothesis, proposed by Greg Bishop, in which the perceptions of witnesses of paranormal events are shaped by their cultural expectations:
https://www.dailygrail.com/2018/05/ufos-...ypothesis/
https://www.dailygrail.com/2018/05/ufos-...ypothesis/