These bizarre Trisqucle scissors are by Japanese scissors manufacturer Zencix.
The name is derived from "triangle, square, circle."
I could find virtually nothing about them, except that they've been in production since at least the 1980s; auction site Worthpoint is selling a vintage pair from that era.
The modern versions are carried by UK-based stationery brand Present & Correct, who has rebranded them Shape Scissors. They run £22.50 (USD $26) apiece.
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