Is there any recorded use of the phrase, "Beauty is in the eye of the beholder" being used in a commercially available D&D campaign or any rulebook of any edition, specifically to reference (secretly or overtly) a beholder that appears in the course of the campaign? What's the earliest instance?
Looking for an answer drawing from credible and/or official sources.
Preference for (A)D&D gaming publications of any version, including rule books and published or commercially available campaigns. Will also accept any other D&D branded material, including games, video games, publications and marketing. Please include reference images if possible (with web link citation) and which publication the reference is from and the date, even if you think it's obvious.
The earliest reference is 1987
First time I heard it referenced in Dungeons and Dragons was in the 1987 Saturday morning cartoon.
Not really published though and not exactly canon.
The earliest reference is 1990
Not exactly a campaign but an early issue of Dragon magazine had a “cute” drawing of a beholder on the cover. The issue’s tagline is “Beauty is in the eye of — oh, skip it.” It was their 1990 April issue, #156:
(This issue is in the tradition of April issues of Dragon being silly for April Fools’. If you ever wanted to encounter the dread Bubble Dragon or a herd of Blink Mammoths, this is your DM’s issue.)
From 2017, Newest!
This had been posted and was unfortunately deleted. Here it is again, from Xanathar's Guide to Everything