Recognition at work

Today I got two awards from different sources for my performance at work. The awards were for the same project that was difficult but has proved valuable to the business. It's nice to be recognized, but at the same time it's humbling. I know that for all my work it was also the contributions of others that were vital to the success of the project. I'd like to do something to thank the other people who were involved in the project, but I don't want it to seem trivialize their contributions. Does a plate of cookies or ice cream sandwiches say thank you? Or would a card be better?