Reddit mentions of AMAZING SALE!!! Nail Art Brush- Professional Nail Artist Set Kit of 15 Nail Art Brushes in a Case By Cheeky.

Ah, yeah. It might be a little difficult with a brush like that. I got this set from Amazon, and for striping, the really long ones, like the brush all the way to the left, is probably more ideal. They look intimidating and weird to get used to at first lol, but they're ok. The nail art polishes have brushes kinda like that inside. I went nuts and got this giant set of them, but you could probably just pick up black and white or some other basic colors somewhere else to get started and see how you like them :)

First, I suggest looking at this helpful post. It's on the sidebar but it's at the very very bottom lol

Catalinahx did a good job overviewing everything. Definitely check out the nail blogs like Rebecca likes Nails, Nailin' it and Nailside for tips on creating perfect nail art!

I have brushes by m.a.s.h. I got them from Amazon for an okay price!

I used a thin brush from this set and just went quite slow. With the brush being so thin you have a bit of leeway to wobble as you can just make the line a little thicker. Also when you put the next colour on you can straighten up your last line. I drip the colours onto a palette so theyre a little tacky when painting them on and do one colour at a time. This seems to stop them from running into each other.

Hope that helps!