Elegant Wedding Cards Any Ideas For Polka Dot Accents In A Wedding?

Any ideas for polka dot accents in a wedding? - elegant wedding cards

My wedding colors are pink and black (bridesmaid dresses are black, the flowers are pink ... etc.) ... I want an accent and some polka dot black and pink ... as place cards or something with the center piece. I'm not sure how it without being too childish found. I want to see my marriage is still too elegant ... But I like polka dots! Ideas?