These fascinators will probably make my list of "wildest royal wedding hats," too, but for the sheer ... but my favorite part is probably the veil, which is thin enough to be unobtrusive but ...

a fascinator with gold and black stars, a flat purple hat festooned with flowers, a black hat with a netted veil and a hat with a grasshopper-like bug perched atop layers of silk chiffon.