There are certainly some interesting (Chinese-made) keys on Amazon:

https://www.amazon.com/Telegraph-Key-Stainless-Classical-Oscillator/dp/B0DGL4RC71/ref=sr_1_1_sspa

https://www.amazon.com/VK-5-Straight-Telegraph-Silver-Plated-Transceiver/dp/B0F7X43K4L/ref=sr_1_4

(Political note: Every dollar we spend on Chinese-made goods directly funds the Chinese Communist Party and its military.)

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73, 
Jeff KH6O / 6

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