Flower to go with yellow table cloths?

I'm planning the decorations for my backyard engagement party. I chose yellow table cloths and would like to make a napkin ring that matches the centerpieces (undecided on flower).
I immediately thought of daisies but my FSIL had daisies as her theme for her wedding. It wouldn't be the worse thing to also do daisies but I'd like it to be 'ours' and not FSIL's. Any thoughts on a good flower to go with yellow tables?

Thanks!
Nancy

There are ALWAYS roses, and they come in any color. What about lilys, they might be out of season but the white ones go with any color. Just a thought