Mixing cultural traditions in a non-religious wedding

We often marry people from different cultural & faith backgrounds. My first wedding ceremony, 15 years ago, was Jewish and Catholic, at the UN. Which we call a 'New York wedding'. Since then, we've married Hindu and Jewish, Buddhist and Jewish, Atheist and Protestant, Mormon and Catholic, Muslim and Catholic, Jain and Atheist, Shinto and Greek Orthodox, Korean and Japanese, Russian and Irish, German and Chinese, Filipino and Indian, Celt and Trinidanian, Pagan and Catholic - and many more combinations.
Please note, that we can certainly include cultural traditions, but we do not perform religious traditions ourselves. We have co-officiated with spiritual leaders (especially if you have a friend or family member who would like to participate), and welcome a discussion about your wishes to honour your cultures.

Here is a wedding we did on the Toronto islands for couples from different backgrounds:

"....Conrady, 33, is originally from Germany. Chaoui, 36, is from Lebanon. “We are part of an international culture,” explained Chaoui in an interview before the wedding. “We did not want to be bound by traditions. We did not try to satisfy any vision of how it should be,” she said. “We did not want it to be conformist and we wanted it to be affordable and fun. We are not rooted in any particular culture. We could have adopted North American traditions or German or Lebanese – but they are not really ours. We are a cultural hybrid.”
For example, in the Lebanese culture traditions are varied, she explains. “It is an eclectic country,” says Chaoui. “Often people spend a fortune on weddings. And the invitations to the festivities are very open. They are less structured. Everyone in the village is invited. There’s traditional folk dancing and belly dancing.” Conrady, as well, says typical weddings in Germany are large, open affairs.
By contrast, their Ward Island wedding was intentionally small, intimate and economical. Beaty was recruited because the couple appreciates humanist ideals. “We wanted everything relaxed and open-minded,” says Conrady."