Roman Glass Print Napkins - Apartment 48
I don't usually go nuts over napkins, but these are just so strikingly colorful and unique. You could choose all one color, or get the entire rainbow. Either way, all you would need to complete your tablescape would be simple white dinnerware. Bonus: they are the green alternative to paper napkins.
In addition to being literally green, this lunch kit is the Full Monty, with insulation, a water bottle, 4 food-safe containers, and napkins. AND it's dishwasher safe.
One of the great things about having a cute set of cotton napkins on hand is that you will earn huge "green" points while saving yourself the trouble of having to pick up all those stray paper napkins when the party is over.