Develop a design concept for a 3-8 year old princess themed birthday party blank invitation inspired by the 'glittery glam barbie birthday bash.' the theme should continue to revolve around a black barbie doll, pink glittery background, elements, and varying shades of pink glitter and purple glitter drip this time, focus on incorporating the idea of a fairytale glam, magical, fantasy, balloons, where black girl barbie is surrounded by pink glittery butterflies, and other enchanting garden-themed decor. the invitation should exude an air of elegance, charm, and whimsy. please ensure the design remains cute, unique, fun, and functional, with an emphasis on creating a visually stunning and unforgettable invitation.