There's this new innovation with nail art - fountain pen. It helps you create finer and smoother lines plus it lets you be more in control of your nail arts than the usual nail art pen or the smaller brushes. I'd love to try one but it sells for about ~$70 (~Php 3,000). So expensive. However that price already includes 4 bottles of the special paint and a manual. The pen is also from Japan, no wonder it's so expensive.
(Photo Credits to Mr. Rolando Wong)
Here's a video on how it used. It's in Chinese but you can understand the video without the audio. :)