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And this is what it was cropped from:
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Beautiful Christmas decorations!
Three of you got it right, starting with my blogless cousin, Mel: "I'd go for the Christmas ornament "; followed by Dyane: A Christmas ornament?; and Denise: "a round purple glass ornament".
Susan's comment, "THAT is an acid trip. Shame on you, L^2. And to think I gave that girl a blog award today!" and Robin's: "The fires of Mordor, viewed through a slightly purple haze (oh wait, that's the acid trip thing again...)" appealed to both my 70s hazy remembrances and my LOTR obsession!
So...
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What is it?