Interesting detail: the packaging was absent any manufacturer identification apart from "Made in China"
They're back and the one on the right just chased away a squirrel!
The end result
Turns out you only need the smaller square (rotation) matrix and can work out parts of the larger one implicitly, this saved some time!
Once there was an elephant,
Who tried to use the telephant—
No! No! I mean an elephone
Who tried to use the telephone—
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