Still hate my plate setting

So we got the quote from the caterer/rentals and the rentals were WAY more than we had hoped. Lame. Apparently our tablecloths were expensive, that's what we get for shopping without price tags. So we won't be upgrading to prettier china/silverware, but I've gotta do SOME thing.

Recap:

This is my mock setting. White china, simple flatware. The tablecloth has a pretty sheen to it and is a nice clovery green color. And it's booooring.

Our centerpieces will be similar to this, in colors and shape, but smaller. And surrounded by votives and pillar candles.
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Ideas:

Napkin pom rings. These beauties (introduced to us by Martha and adapted by another blogger) seem easy enough. Tissue paper and floral wire, I can handle. Wouldn't it be pretty to have several color poms to go around the table? Different colors at each place setting around the table... various greens, ivory, yellows?

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Different napkin/name card idea. This would be a fun way to add color. I wasn't really planning on assigning seats, but I bet we could find some pretty, cheap ribbon and do this pretty easily. And that name card + belly band looks a lot like my invitations & programs.

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Colored napkins. We planned on having a green tablecloth, white china, and white napkins. But maybe green napkins is all you need? (Ignore the huge seashell centerpiece in the pic below.)

The really simple dishes, flatware and glassware look just right in this picture with the color coordinated linens.
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Do you have a favorite? How else could I spice up the place settings?