Mystery rubber drain plug?

Just found this rubber drain plug? On the drive near my MX5 (NC 3.5 Sport Tech).

Not sure if it’s off the Mazda or from another car.

Anyone recognise the part?


Can’t see any images…

Yeah that’s it, a mystery drain plug😁

Sorry couldn’t resist👍

Nothing showing.:roll_eyes:

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Sorry, dont know why the photos didn’t upload.

A possibility it’s one of those rivets holding the heat shield material near the cat. The head about the size of a 5p. One of mine popped out somewhere but the material is still intact.

Doesn’t look like a Mazda part to me.