Key to Happiness M70 Master Key model
thingiverse
This is an exact replica of a M70 Master key. On one side you will see the word happiness and on the back side you will see an acronym "PYAOWYDHAUWYD" to help you achieve happiness, which is why it's called the Key to Happiness. What does "PYAOWYDHAUWYD" stand for? Nobody said that achieving happiness would be simple. With a bit of filing I managed to get the key working on one of my Master Locks.
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