You need to supply a lot more information. Is the cushion 20" high? The bench? If the bench, how does that matter? And then how thick do you want the cushion? And how deep do you want it? Is a Star Wars theme okay? How about a Hello Kitty theme? Or do you want a Halloween theme? 4th of July? Just a single color? How about bright pink? There are just too many variables? You need to rethink the whole question.
That would be an inventory question for the Store, just call them.
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