I look up tutorials on how to do certain tricks (grass, bricks, etc.) and made my own. I found that it makes it more fit for my town if I get to choose the little details.
I would totally suck at making my own, so I've spent the last couple years scouring tumblr ACNL blogs for possible paths, and bookmarking several foreign NL blogs.
Maybe someday I'll try my hand at making my own, but there are a LOT of gorgeous paths out there in the meantime.
I just looked up ''brick path'' for mine. I don't prefer pinterest because it pops up that you should sign up or whatever, and that really bugs me. -.-