How do you say "Our Bond is Uncommon" in Latin?

I don't know if there is a more proper way to translate it but the literal translation for each word is:

Our = Nostrum, Nostri, Noster, Nostra

Bond = Vinculum, Iugum, Copula, Connexio

is = est

Uncommon = Rarus, Insolitus, Eximus


As for which word is the proper one to use in that statement, I don't really know...

I would go with Nostrum Insolitus Connexio (Our Uncommon Bond) because it sounds cool...

" nostrum vinculum est rarus "
None of the words here are capitalized hope it helped?? Hit ironclad04 up for english to latin translation needs!