Looking for some fintastically fun mermaid birthday party ideas and birthday decorations? Throw the ultimate under-the-sea themed birthday celebration with Bonjour Fête’s collection of mermaid-themed party supplies and mermaid party decorations. Choose from a variety of sea party decor like mermaid balloons, shimmery tinsel garlands, and mermaid cupcake kits and cake toppers. Make a splash with the best mermaid party supplies for a little mermaid’s birthday bash, like our shell plates, glitter sea creature candles, and mermaid party favors. Finally, don’t forget to shop our mermaid costumes like sequined mermaid tails and shellabration crowns, perfect for transforming any human into a pretty underwater princess.