I do my own nails somewhat loli style.
Here is what you do, depending on what kind of loli depends on the style of your hands.
Yes they do have somewhat semi long nails. I dont keep them that long cause I do arts and crafts and i draw.
But what you can do are french tips those are the basic or do one solid color.
I personally love the natural color or the soft nautral pinks.
go for elegance and especially if they are not glitter but shimmer tones that are uber shinny then go for it.
But think soft and cute depending on the lolita you are.
If you want something playful, I did my nails once with red and white polka dots but i drew some ribbons instead of french tips you know like a border ribbon... eh.. dunno how to explain.
but if you wanna know how i have my nails now
here is a link
http://i21.photobucket.com/albums/b269/angelfuu/nails.jpgMy nails here are very VERY simple compared to the other stuff ive done.
I used a korean nailpolish thats like a pearlish colored pink and put polkadot borders on my fingers and a heart on my thumb ^^-
I first painted everything in one color then used acrylic paint to do the designs but it comes off easily dont worry!
dont forget to put the clear coating that way when you do anything the acrylic wont fade that quickly. It will however be gone if you use nail polish remover on them