You could use French guide tips for this as well if you want a more consistent look, just reverse them and stick them on. Otherwise, practice will make perfect freehand! Will you try a Ruffian manicure?
PS - Also, going along with fashion, Burberry has just released a new makeup line. I have read great things about the whole line and decided to try it out. I ended up buying a lipstick and cannot resist showing you (Blush No.09). It glides on effortlessly, super moisturizing, and the packaging is adorable. The tube has a magnetic cover and even the lipstick itself is imprinted with the famous Burberry plaid. Who could ask for more?