I added white nail polish for the tips, coated with a layer of clear coat, then added details in black acrylic paint and white gel pen. It all took well and did not smear when i added clear topcoat to seal it up. Fun!
Please note that my little toe did not make it into the picture because it sticks up. I mean it. I have freaky pinky toes. Don't judge me! I didn't make you look at them. Just imagine a perfect pinky toe to the right and pretend I didn't say anything.