Step 1: The supplies
glitters, clear polishes, index card, Scotch tape
Step 2: The funnel
Use the index card and Scotch tape to create a funnel that will fit into the mouth of your polish bottle. This gives total control of how much glitter you put in at one time.
Step 3: Setting up
Take your brush out, making sure to get as much excess polish off as possible and set it aside. Then fit your funnel securely into the bottle. Select your glitter start adding in small intervals.
Step 4: Shake, shake, shake
After each little bit you add, put the top back on and give the bottle a good shaking. Mixing progressively like this makes it easier when your bottle is entirely filled with glitter. This is especially important if you'll be using more than one color of glitter.
Step 5: Having gorgeous new glitters
These are my finished products. The bottle on the left is just copper glitter; I used less glitter in this bottle so that I could use it to layer with other polishes. The one on the right is a combination of black, silver, and copper. I absolutely love how they both turned out and I can't wait to wear them.