Star Festivel Origami: Triangle Ornament

https://www.paperorigamiblog.com/2011/07/star-festivel-origami-triangle-ornament.html
Decorations (usually made of glass, metal, wood or ceramics) that are used to festoon a Christmas tree. Ornaments take many different forms, from a simple round ball to highly artistic designs. Ornaments are almost always reused year after year, rather than purchased annually, and family collections often contain a combination of commercially produced ornaments and decorations created by family members. Such collections are often passed on and augmented from generation to generation.
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