Finding Nemo Birthday Party Supplies, Party Favors and Party Decorations. It’s time to dive into Finding Nemo- a hilarious adventure that takes you into the breathtaking underwater world of the Australia’s Great Barrier Reef. When you invite Nemo, Marlin (Nemo's Father) Dory, Gill and Peach to join in with your party fun your sure to make a splash! You will find a large assortment of Nemo party products including invitations, cups, plates, napkins, banners, party favors, stickers and more. Create an unforgettable birthday party for your little “fish” with our full selection of Nemo party supplies.