No, I am not recommending neon nails for your wedding, but the idea of being able to do color gradations on your nails with gel polish is intriguing. Imagine using pale blue, fading to grey and then pale pink. very pretty and unique.
Artistic results but very messy to DIY. You'll need a very small straw or coffee stir. Paint nails base color straw in varied nail polish bottles BLOW P.s wear clothes you dont mind getting nail polish on.