Find the hottest kids' birthday party ideas featuring beloved characters at Party City. From Blue's Clues and LOL Surprise to Mermaids and The Mandalorian, choose your kiddo's favourite theme and bring it to life with our birthday party decorations and accessories. We've got character-themed balloons and favours to celebrate. Use our themed bakeware to create and display birthday cakes. Check out some of our top Kids' themes that will help grant happy birthday wishes!