Back to the future with these.
Youll need three colors, and a paint brush or nail stripper.
First, clear coat your nails to protect them.
Start out with your main color, I chose blue, and paint half of the tip that color but angle it in the middle.
Wait for it to dry, and then apply your second color, I chose pink, in the same manner.
Once the pink is dried as well, bring out your nail stripper or paint brush and pick the color you want completely outlined. For me I picked the pink because I am right handed and it was easier.
Paint from the middle tip to the side and let dry.
Once nails are dried, apply a top coat to add shine and a protective covering.