This is probably one of the easiest ways to do a glitter tattoo (if you have glitter). It's a three step process for the first time, and after it's only one if you keep your makings!
Glitter (darker colors are better)
Scissors or Pliers
Step 1: Paperclips
With your pliers or scissors, carefully bend the paperclip into whatever shape you want (make sure there is a small handle!). Make sure it is completely flat!
Bend handle upwards for best results.
This is a really simple shape that I put a picture of. You can make anything from stars to pentagons and back!
Step 2: Glitter
Dump a small portion of glitter onto a base and press the shape into it. Make sure there is glitter on it!
Step 3: Glitter Tattoo!
Press the shape hard into your skin and watch a tattoo appear!