Key
You take some gold and cover your yoga brush in it, turning it into a key. You shove the brush you normally use for yoga into the lock to your car and pour the gold over it. Now it's the right shape to be a key!
けん
かぎ
None
This key has to be perfect, because if it isn't the car guillotine (かぎ) will come down and chop off your hand!
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