For the decorations, you will want to transform your party room, your living room or your garden, depending on where you actually plan to have the party, into a prehistoric jungle. You can easily order dino party supplies like balloons, cupcake toppers, birthday banners, tropical palm leaves, and garlands as a full set online, which saves you time and money. If your little cute-osaurus really is into dinosaurs, you may want to get some decorations that can be kept after the birthday is over, like posters, figures or playmats (depending on how old your child is).