National instrument of Wales?
Clwth perhaps?
National Instrument of Whales?
Plankton?

And WAV. just to correct your post (fictional)

"I don't mind immigrants from there, but, not part of the world"
Agreed you didn't say that, it doesn't even make sense.

But

You would probably say

"I don't mind immigrants from there, but, not part of MY world"
Yes?