Hi,
Thanks for invite.Are you looking for the 'Yin-Yang' as an English or in other language character/Symbol?

Hello,
It needs to be only in black and white?

Hello,

it can say yin-yang, but does not have to. If it does, would prefer in English.

We would prefer black and white, but are willing to consider others if they fit the look we need. If creating that contrast of spiritual vs. pragmatic is done in color, we would consider it. It would need to be able to be printed in grayscale however.