Cosmetic grade micro glitter is a great way to add some sparkle to you henna. Poof the glitter on wet henna and watch it sparkle. Available in 14 colors to choose from.
 
Micro glitter is 008 hex in size. You can use this to make your own Glitter cones too. This is safe to use on skin.
 
Available in 0.5 oz and 1 oz poof bottles. Glitter is sold by weight and not volume. Some bottles of 1 oz glitter might not the all the way full. 
 
Color available are:
Fiery RedRoyal BlueCeleste BlueLilacParty FuchsiaPink FlamingoMetallic BlackSnow WhiteSultry GoldEmerald GreenLime GreenShimmering Silver
Holo Purple (holographic)
Holographic Silver (holographic)